Location: Salzkammergut Map
Area: 45.9 km²
Depth: 171 m
Official site
The Attersee (also Kammersee) is a lake in the Upper Austrian part of the Salzkammergut in the district of Vöcklabruck and is 469 m above sea level. A. The outlet of the Attersee is the Ager, which drains into the Danube via the Traun. The nutrient-poor lake, with its diverse banks, offers habitats for many animal and plant species and has been a Natura 2000 area since 2006. With a water surface of more than 46 km², it is the largest lake in Austria. At 169 meters, it is the third deepest lake in and on Austria after Lake Constance and Lake Traun and is only surpassed by the (entire) Lake Constance with a water volume of almost 4 billion cubic meters. The Attersee, owned by the Austrian Federal Forests, is an important tourist destination in Upper Austria and a popular bathing lake as well as a diving and sailing area. On the shore of the Attersee are the remains of Neolithic pile dwellings, which are part of the UNESCO World Heritage Site Prehistoric Pile Dwellings Around the Alps.
The Attersee is located in the Upper Austrian Salzkammergut in the 
		district of Vöcklabruck. Larger towns on the shore are Seewalchen and 
		Schörfling in the north, Weyregg and Steinbach in the east and Unterach, 
		Nußdorf and Attersee in the west. In addition to these communities, the 
		community of Berg im Attergau has a share in the lake area.
		Stretching from north to south, the lake has a length of 18.9 km and a 
		maximum width of 3.3 km. The surface is about 46.2 km², the average 
		depth 85 m. The deepest point is given in the ÖK 50 with 169 m. In 2014, 
		divers claimed to have discovered a spot with a depth of 172.6 m. The 
		water volume is 3943 million cubic meters.
Riverbank
The shore 
		length of the Attersee is 48.5 km. All banks are heavily built up and 
		most of the stretches of bank are privately owned and not open to the 
		public. Many communities on Lake Attersee have their core settlements on 
		or near the shore. There are church hamlets like Weyregg am Attersee, 
		but also scheduled church towns like Unterach or Steinbach. Scattered 
		between the settlement centers are individual farms, small hamlets and 
		settlements with residential and weekend houses. The shore areas were 
		massively built up in the 1970s and 1980s. Shops, restaurants, 
		residential buildings and second homes are lined up next to each other. 
		The result was the building up of the bank edge with footbridges, 
		boathouses, boat slips, stairs, walls, block sets or riprap. In those 
		bank areas that are too steep for development, there are usually roads 
		with bank reinforcements that have replaced the natural bank. About 87% 
		of the shore of the Attersee is clearly impaired. The east bank, the 
		north bank and the northern part of the west bank and the section 
		between Misling and Unterach are particularly affected. Only 13% can be 
		classified as near-natural or natural. The longest contiguous natural 
		sections are between Dexelbach and Parschallen, between Aufham and 
		Dickau, near Schwend and in Burgbachau.
Morphology
On the 
		southern shore are the foothills of the Schafberg, on the southeastern 
		shore up to Steinbach am Attersee, the western end of the Höllengebirge. 
		The mountains there reach 900 m above sea level. A. up to 1100 m above 
		sea level A. and drop steeply down to the lake. Most of the eastern 
		shore and all of the western shore are framed by forested, rolling 
		mountains and hills that end at the northern edge.
The lake basin 
		is divided into three sub-basins: a southern basin, a central basin and 
		a northern basin. In the southern basin, the deepest point is 169 m, 
		about 1 km north of Weißenbach am Attersee. It extends to the 
		Stockwinkel – Seefeld line. The central basin, which is a maximum of 164 
		m deep, extends to the Nußdorf am Attersee – Alexenau line. The 
		underwater morphology is determined by the surrounding rocks. 
		Occasionally there are hardlings that have not been completely eroded. 
		There are three prominent elevations in the central basin: an underwater 
		mountain that reaches up to a depth of about 12 m, the A. Müller peak 
		and the Laichberg. The latter is located in the middle of the lake near 
		the village of Nußdorf, in the middle of a basin 120 m deep and extends 
		to 49 m below the water surface. The banks are much steeper on the east 
		side than on the west side, as the Höllengebirge continue their rock 
		faces under water, as at the Black Bridge near Seeleiten. The maximum 
		131 m deep northern basin is mainly characterized by gently sloping 
		banks. The bay of Litzlberg is separated from the rest of the lake basin 
		by a large wall. On this wall there is a small island with Litzlberg 
		Castle.
Traffic
The area can be reached via the West Autobahn 
		with the Seewalchen and St. Georgen junctions. Seeleiten Strasse runs 
		along the east bank, while Attersee Strasse runs along the west bank. 
		The Attersee is connected to the Western Railway by two branch lines. 
		The standard-gauge branch line "Kammerer Hansl" built in 1881 runs from 
		Vöcklabruck to Kammer am Attersee. The narrow-gauge Atterseebahn, opened 
		in 1913, connects the town of Attersee with Vöcklamarkt. From 1907 to 
		1949, the Unterach–See electric local railway connected the shipping 
		piers of Attersee and Mondsee.
The hydrological catchment area of the Attersee has a total area of 
		464 km². The Attersee forms the final link in a chain of lakes that 
		begins in the south-west with the Fuschlsee and in the north-west with 
		the Irrsee. The water from both lakes flows into the Mondsee and from 
		there via the 2.9 km long Seeache in the southwest near Unterach into 
		the Attersee. The Seeache provides 58% of the total inflow. There are 
		also a number of other tributaries such as the Weyregger Bach, the 
		Alexenauer Bach, the Kienbach, the Äußere Weißenbach, the Loidlbach, the 
		Burggrabenbach, the Par Schalenbach, the Dexelbach, the Nösstalbach and 
		the Ackerlingbach as well as numerous smaller surface and underground 
		tributaries. The outflow takes place at the northern end in the area of 
		the municipality of Seewalchen into the Ager. The water renewal time 
		is 7 years and is the highest theoretical water exchange rate of all 
		Upper Austrian lakes. The average water temperature is 13.7 °C. The 
		minimum water temperature measured near the surface in the years 2007 to 
		2010 was 3.5 °C, the maximum 21.1 °C.
The water level is 
		regulated by a weir at the outlet of the lake. As a result of this 
		artificial intervention, the average level is 20 cm higher and the 
		natural yearly water level is dampened. Nevertheless, there are regular 
		strong spring floods. While maximum mean water levels used to be reached 
		around April to May, they now occur around a month earlier (March to 
		April). As in the past, the lowest water levels are mainly reached in 
		autumn (October to November). According to records, the Attersee had a 
		mean water level of 469.02 m above sea level from 1897 to 1913. A. 
		maximum water level fluctuations of 137 cm and mean annual fluctuations 
		of 69 cm. The range of the monthly mean values was 27 cm. In the 
		period 1976 to 2000, the corresponding values are 469.22 m above sea 
		level. A., 109 cm, 51 cm and 13 cm.
Tectonics
The Attersee lies in the area of three large tectonic 
		units. In the south it is the Limestone Alps, followed by the flysch 
		zone with the Rhenodanubian flysch, which is occasionally interrupted by 
		the Ultrahelvetic. The Northern Limestone Alps consist of the 
		Staufen-Höllengebirge Nappe (Tyrolic Era), which is preceded by a narrow 
		strip of the Langbath Zone (Bajuvarian Era). This area forms the south 
		bank and extends on the east bank to about the village of the forest 
		office. The majority of the Attersee area is occupied by Rhenodanubian 
		flysch. In a narrow area between Nußdorf am Attersee in the west and 
		Alexenau in the east, the Ultrahelvetic comes to light.
Former 
		glaciation and formation
Like all lakes in the Salzkammergut, the 
		Attersee is also a product of the work of Ice Age glaciers. During the 
		ice ages, the Traungletscher flowed from the Dachstein plateau and the 
		Dead Mountains via side branches through the Ischtal and Weißenbachtal 
		into the Attersee area. The glacier dug up the deepened tongue basin of 
		the Attersee. The ice spread in the Mindel was the strongest and the ice 
		flow from the furrow of the Attersee flooded all adjacent valleys in the 
		flysch zone and formed a far-reaching foreland glacier, from which the 
		Buchberg near Attersee just protruded as a nunataker. The lake basin was 
		given its current size and shape by the ice ages that followed. In the 
		late glacial dead ice remnants in the south and the moraine wall in the 
		north blocked the outflow, creating a lake with a level of about 550 m 
		above sea level. A. emerged. The slow deepening of the Ager into the 
		terminal moraine lowered the lake level to today's level. After the 
		final disappearance of the ice and the formation of the Attersee, 
		extensive delta deposits were accumulated at all major tributaries. The 
		delta sediments of the Äußeres Weißenbach fill the entire Weißenbachtal 
		with a thickness of around 100 m. But also at the mouths of the streams 
		on the east side of the Attersee, extensive delta bodies have formed due 
		to the high debris load. The silting up of the lake basin in the 
		Attersee is slower than in the other large lakes in the Salzkammergut, 
		since the Mondsee, the Fuschlsee and the Zeller See are upstream of it 
		as sediment storage and sludge traps. The lake basin will be gone again 
		in about 500,000 years.
Mass movements
In the postglacial 
		period, there were large-scale mass movements on the southern and 
		eastern flanks of the Hochplettspitz-Hollerberg ridge. These are 
		characteristic of the landscape on the east flank due to their striking 
		step-like formation from the ridge area to the bottom of the lake. 
		Landslides still occur today and sometimes have significant effects on 
		the bank areas. When the snow melts suddenly and as a result of 
		long-lasting precipitation, slope areas and ditch sections are 
		destabilized. In September 1959, excessive rainfall triggered a slide 
		between Kammer and Weyregg. Even today you can find trees up to 20 m 
		long in water depths of about 15 to 30 m. These trees form the 
		"underwater forest" known to divers.
A rainy, mild winter sea climate prevails at the Attersee. Due to its 
		location on the northern edge of the Alps, precipitation is frequent. 
		The lakeside climate is a special case because of the different heat 
		transport of the water and the local land-sea wind systems.
		temperature
The annual mean temperature in the lake area is between 7 
		and 9 °C. In comparison, those of the flysch hills are only between 5 
		and 7 °C. The lake acts as a heat store in the cold season. The western 
		and northern shores of Lake Attersee are particularly warm. The January 
		mean air temperature in the immediate vicinity of the bank is one of the 
		warmest in Upper Austria and is between −1 and −3 °C. The annual number 
		of frost days in the Attersee area is between 100 and 120. The summer 
		temperatures do not differ as clearly from the surroundings as the 
		winter values. The mean air temperature in July is between 16 and 18 °C. 
		Spring temperatures are relatively cold as the lakes warm up slowly 
		after winter. Late frosts are possible until mid-May.
		precipitation
Due to the northern dam location, the annual 
		precipitation totals of 1000 to 1600 mm are relatively high compared to 
		the rest of Upper Austria. Precipitation increases with increasing 
		proximity to the mountains. The northern part of Lake Attersee has an 
		annual rainfall of 1000 to 1200 mm. The southern end of the Attersee 
		shows values around 1400 to 1600 mm. The precipitation maxima occur in 
		the summer months from June to August. Thunderstorms are very common at 
		this time of year, which can be accompanied by heavy rains.
wind
		At the Weyregg measuring station, the north to north-easterly winds 
		dominate during the day, which blow towards the sea as day winds. The 
		north-easterly winds are mainly in the summer and the north winds are 
		mainly in the winter months. At night and especially in summer, the 
		southeast wind is strong. Wind peaks of around 3 m/s occur during the 
		day and the wind calms down at night. Seen over the year, the strongest 
		winds occur in January.
fog
Due to the humid, warm air masses 
		of the Attersee and the nearby lakes Mondsee and Irrsee, fog often forms 
		in the cold season. In inversion weather conditions, this can last for 
		weeks. The high fog layer in the Attersee-Mondsee basin usually extends 
		to around 700 m above sea level. A. In contrast to the valley area, the 
		higher-lying areas are then fog-free.
circulation
The Attersee is a dimictic lake and belongs to the 
		type of deeply stratified alpine lakes. Twice a year, in spring and 
		autumn, the wind can completely mix up the body of water due to the even 
		temperature distribution. In summer and winter, the metalimnion 
		separates the surface layer (epilimnion) from the deep, evenly tempered 
		part (hypolimnion) of the lake. The highest temperatures measured in the 
		open water in 2007 and 2008 were 20.2 and 21.0 °C in August, 
		respectively. These values ranged almost unchanged down to a depth of 
		8 m. Only below 12 m was there a clear decrease in temperature. Above 
		ground, the temperature was very constant between 4.6 and 4.9 °C. The 
		full autumnal circulation extends into January, the spring circulation 
		until almost the end of April. Winter stagnation usually lasts only two 
		to three weeks. A closed ice cover of the Attersee is very rare because 
		of its wind-exposed location and its enormous heat capacity (e.g. 
		1928/29, 1939/40 and 1941/42), locally limited ice covers in bays 
		protected from the wind arise in every severe winter.
trophy
		The lake has a very low concentration of nutrients and is therefore 
		oligotrophic. Even before the construction of the circular sewer system, 
		which was built in the 1970s to 1980s, the Attersee was considered to be 
		poor in nutrients. Nevertheless, in the period from 1974 to 1976 a 
		eutrophication trend characterized by increasing phytoplankton biomass 
		and decreasing transparency could be observed. This lasted until the 
		early 1980s. In addition to slightly increasing concentrations of 
		nutrients and algae in the lake water, some shallow bays and, above all, 
		the area where the Seeache estuary showed signs of eutrophication. 
		During this time, more than 50% of the phosphorus pollution reached the 
		Attersee through the Seeache. In the course of the remediation measures, 
		the nutrient inputs fell significantly from 1982 onwards. Changes in the 
		agricultural sector, such as the stagnation in the number of livestock 
		units and the ongoing conversion of arable land to grassland, also 
		contributed to the relief. In 1986, the limit for ultra-oligotrophy was 
		reached with an average phosphorus concentration of 4.9 μg/l. Since 
		1989, the average total phosphorus concentration in Lake Attersee has 
		been between 2 and 3 μg/l. The concentration differences between the 
		epilimnion and hypolimnion are very small overall, with the higher 
		values occurring in the epilimnion in Lake Attersee. The waste water 
		from the surrounding communities flows into the Lenzing sewage treatment 
		plant run by the Attersee Clean Keeping Association. This has the 
		advantage that the sewage treatment plant is located outside the 
		topographical catchment area of the lake and the treated but 
		nutrient-rich sewage does not pollute the lake.
visibility depth
		With a depth of visibility of up to 20 m, it is the clearest lake in 
		Upper Austria. The maxima are reached in winter. The lowest value was 
		measured in August 2008 at 4.9 m. The low visibility and the 
		milky-turquoise color of the lake, which can often be observed in 
		summer, are a result of biogenic decalcification. However, a large part 
		of the calcium carbonate precipitated in the epilimnion escapes 
		redissolution through the hypolimnion during sedimentation and is 
		deposited on the lake bed in the form of sea chalk. The total biogenic 
		calcium carbonate production of the Attersee is estimated at 11,000 to 
		12,000 tons per year.
plankton
The stock development of 
		phytoplankton in the Attersee shows two maxima over the course of the 
		year. In the first half of the year, with a main bloom in April, diatoms 
		(Bacillariophyta) dominate. Plankton growth during this period is low, 
		deep and has been recorded down to 20 m depth. Typical species are 
		Tabellaria fenestrata, Asterionella formosa, Fragilaria crotonensis, 
		Cyclotella commensis and Cyclotella bodanica. Diatom populations 
		collapse during the summer months and green algae blooms begin, with 
		Geminella minor dominating. The reproduction rate of the green algae is 
		very high, but only reaches a shallow depth. Dinoflagellates 
		(Dinoflagellata) are a typical group of species for Lake Attersee, even 
		if they occur in small numbers. A typical representative is Ceratium 
		hirundinella. The crustacean plankton of the lake consists of 10 
		species, with copepods predominating with 75 to 80% biomass. Dominant 
		species are Eudiaptomus gracilis and Cyclops abyssorum. Daphnia hyalina 
		and Eubosmina longispina are the most common representatives of the 
		clawed tails (Onychura). With an average number of 15 crustaceans per 
		liter, the Attersee can be described as low in plankton.
Fishes
The Attersee offers habitat for a large diversity of 
		species and belongs to the fish-ecological lake type "Elritzensee". 
		These are lakes with a large water surface, high water depth and an 
		altitude of around 400 m above sea level. A. up to 1100 m above sea 
		level A. m above sea level. The leading fish species is the minnow. 
		Other species that occur are: European eel, eel rod, chub, bream, perch, 
		ruff, dace, pike, carp, bullhead, pearlfish, roach, rudd, sooty nose, 
		tench, loach, lake trout, lake arbor, lake char, catfish, zander. 
		Representatives of the genus Coregonus are locally referred to as 
		Reinanken. Due to the many different regional manifestations, a 
		systematic classification of the individual populations of the genus 
		Coregonus is difficult. However, the species Attersee Reinanke 
		(Coregonus atterensis) has been described for the Attersee and Mondsee.
		
Birds
The most conspicuous bird species on the Attersee and on 
		the other Salzkammergut lakes is the mute swan (Cygnus olor), which was 
		settled in Nußdorf, Weyregg and Steinbach in 1932. The lake is a habitat 
		for many ducks. Mallards (Anas platyrhynchos) are common. Tufted ducks 
		(Aythya fuligula), goldeneyes (Bucephala clangula), eider ducks 
		(Somateria mollissima) and pochards (Aythya ferina) are rarer. In 
		addition to the common Black-headed Gull (Chroicocephalus ridibundus), 
		the Common Gull (Larus canus) also occurs. Great crested grebes 
		(Podiceps cristatus) and little grebes (Tochybaptus ruficollis) are also 
		common. The stocks of many species are subject to strong seasonal 
		fluctuations. The population of the coot (Fulica atra) peaks between 
		January and March. Only the mute swan breeds at the Attersee, the 
		remaining species leave the area during the breeding season or retreat 
		to the streams.
Crustaceans
Stone crayfish (Austropotamobius 
		torrentium) and noble crayfish (Astacus astacus) lived in Lake Attersee 
		until the 1970s. The introduction of the signal crayfish (Pacifastacus 
		leniusculus) as a carrier of crayfish plague led to the extinction of 
		the autochthonous population. The stone crab was only able to survive in 
		small tributaries to the Attersee, which are isolated from the lake by 
		pipes. These gradients protect against migrating signal crabs and lead 
		to an interruption in the transmission chain.
With its diverse banks and nutrient-poor, clear water, Lake Attersee 
		offers a habitat for many plants. A total of 46 species (43 species plus 
		3 varieties) could be detected in 2009 as part of a macrophyte mapping. 
		37 of these are submerged plants, 7 are reed vegetation and 2 are 
		floating leaf species. The diversity of stoneworts (Charophyceae) (14 
		taxa) and aquatic mosses (5 taxa) is particularly remarkable. With 83% 
		relative plant mass, the stoneworts are by far the dominant species 
		group. The most common species in Lake Attersee is the black luster 
		algae (Nitella opaca). 22 species, i.e. about half of the species that 
		occur, have an entry in the Red Lists of Austria.
There is hardly 
		any reed vegetation on Lake Attersee and it is not dominated by common 
		reed (Phragmites australis), but by common bulrush (Schoenoplectus 
		lacustris). Nutrient-poor lakes like the Attersee naturally only have 
		sparse, low-growing reed beds. On the other hand, due to the morphology 
		of the lake, there is hardly any room for extensive reed beds. The 
		eastern and southern shores of the lake offer hardly any habitat for 
		reed vegetation due to the steep embankments and the rocky substrate. 
		The west bank is mainly affected by massive bank construction. There is 
		no closed reed belt, only small, island-like occurrences. Denser stands 
		also exist between Buchberg and Litzlberg.
The floating leaf 
		vegetation of the Attersee is only marginally developed. Of the two 
		species that occur, the white water lily (Nymphaea alba) dominates ahead 
		of the yellow water lily (Nuphar lutea). Both Red List species are among 
		the rarest plants in Lake Attersee. Small occurrences at the Attersee 
		are for example in the Mühlleitner bay.
The submerged vegetation 
		at Lake Attersee is dominated by stoneworts and, due to the clear water, 
		reaches a depth of 22 m. The vegetation there follows a typical depth 
		zoning. Shallow-water characeae, such as Chara aspera, grow in the 
		Attersee down to a depth of 2 to 4 m. This is followed by the zone of 
		medium-depth characeae (such as Chara contraria), which can be found up 
		to a maximum water depth of 10 m, but mostly up to 7 m enough. This zone 
		is replaced by deep Characeae with an average extent of up to 10 to 11 
		m. Extensive Nitella corridors extend to the vegetation line, which is 
		on average 15.6 m, but can also be significantly more (maximum 22 m).
The Attersee is part of the European protected area Mondsee and 
		Attersee (AT3117000) according to the Habitats Directive as part of the 
		Natura 2000 network. The protected area is 6134.4 hectares and includes 
		the Mondsee, the Attersee, the Seeache and the lower reaches of the 
		Zeller Ache, Fuschler Ache and Outer Weißenbach. With the decision of 
		the European Commission of December 22, 2003, the area was included in 
		the list of sites of Community importance for the Alpine geographical 
		region. The protected assets that led to the designation of this area as 
		a European protected area (Natura 2000 area) are the habitat type oligo- 
		to mesotrophic calcareous waters with benthic vegetation of stoneworts 
		and the two fish species pearlfish (Rutilus meidingeri) and sea arbor 
		(Chalcalburnus chalcoides). With the ordinance of the Upper Austria. 
		According to the state government of December 20, 2006, the area was 
		converted into national law as a so-called European protected area in 
		accordance with the Habitats Directive. In 2015, a fish ladder was built 
		at the Klauswehr des Ausrinns to enable the continuity of the fish 
		migration.
On the western shore of Lake Attersee between Aufham 
		and Altenberg there is a last remnant of a near-natural red beech 
		forest. The long and narrow strip of shore has an area of 1.8 hectares 
		and the area has been a nature reserve since 1987 (Aufhamer Uferwald, 
		N150). The mightiest trees there have a trunk circumference of 6.40 m 
		and a trunk height of 30 m. The water area in front of the riparian 
		forest is classified as a spawning sanctuary by ordinance and, with the 
		exception of a small section, the setting of buoys is prohibited in this 
		zone.
Shipping
Commercial Attersee shipping was founded in 1869. Today, the company 
		Stern Schifffahrt GmbH, based in Gmunden, operates shipping on the lake. 
		There are regular boats on two circuits. The north circuit stretches 
		between Seewalchen and Weyregg, the south circuit between Weyregg and 
		Unterach.
Tourism
Due to its good water quality and its 
		temperatures, which are suitable for swimming, especially in protected 
		areas of the shore, and the good sailing conditions due to the open 
		location with a relatively constant and predictable wind situation, the 
		Attersee is of great tourist importance and summer tourism is an 
		important source of added value for the economy in the region. A third 
		of the guests come from Germany and two thirds come from abroad. Winter 
		tourism plays only a minor role. After the summer season, which lasts 
		from May to September, many businesses close for the winter. Since 
		tourism is heavily dependent on the weather and there are no bad or 
		all-weather programmes, the number of overnight stays in the entire 
		region has fallen sharply in recent years. The number of day visitors 
		coming from the central areas of Linz and Salzburg to go swimming is 
		increasing. On nice summer days and especially at weekends, the pools 
		and parking lots are often overloaded.
As early as 1892, an 
		association was founded to promote summer resorts at the Attersee. In 
		1926/27 it was re-established as a tourism association for the Attersee 
		and Mondsee area. The Attersee Association was founded in 1952, and in 
		1999 the local associations of the Attersee communities merged to form 
		the multi-part tourism association (tourism region) Ferienregion 
		Attersee, which was also a founding member of Salzkammergut Tourismus 
		GmbH in 2001 (since then Ferienregion Attersee-Salzkammergut). In 2019, 
		the tourism associations Attersee and Attergau as well as Frankenmarkt 
		and Vöcklamarkt merged to form a large association and today operate 
		under the name Tourismusverband Attersee-Attergau.
Some seaside 
		resorts that are owned by the federal forests, the state of Upper 
		Austria or the neighboring communities are available to the general 
		public. In the south and south-east there are also some narrow, publicly 
		accessible shore strips, which, however, lie directly on the main 
		thoroughfares.
Fishing
Fishing is hardly ever practiced as a 
		full-time job on the Attersee. Most of them are part-time farms or inns 
		with their own fish farm. Fishing rights are property of the owner and 
		can be sold or leased. It is the task of the fishing districts to issue 
		the licences, to regulate the species-appropriate annual stocking and to 
		determine catch quantities. The Attersee is divided into 56 fishing 
		rights (large and small fishing rights), which are combined to form the 
		Attersee fishing area. The fish population in 1997 was 1.5 million 
		whitefish, 0.5 million pike and 350,000 vendace. The estimated total 
		catch per year is around 5 - 7 kg/ha.
boating
Due to the good wind situation, the Attersee is a popular 
		sailing and surfing area. There are eight sailing clubs on the lake. The 
		Union Yacht Club Attersee, based in Attersee am Attersee, was founded in 
		1886 and is the largest club on the lake. The Attersee is known for the 
		so-called rose wind, a typical thermal that can develop due to the 
		topographical situation. If the weather is stable in the late morning, 
		the warming of the mountain massif to the south creates a vertical flow, 
		which is fed by cool incoming air from the northern outflow of the Ager 
		to the mountainous basin to the south. This creates a constant fresh 
		breeze even when the high pressure is stable. The second main wind 
		direction is the west wind, which is known for its strong and 
		unpredictable gusts.
In July and August there is a ban on 
		internal combustion engines on ships and boats. Excluded are commercial 
		fishing, liner shipping and rescue and fire brigade vehicles.
		diving
Due to the mostly excellent visibility and the submarine 
		cliffs on the east bank, the Attersee is a popular diving area. Because 
		of numerous accidents, especially in the area of the so-called Black 
		Bridge, the Attersee has gained notoriety among fans of diving. 
		According to rescue service statistics, 13 divers who died in an 
		accident were recovered there between 1971 and February 2009. On 
		September 18, 2005, Hans Brandstätter reached a depth of 165 meters, 
		setting a new Austrian record.
To go biking
Once a year, 
		usually at the beginning of May, a car-free cycling adventure day is 
		held, during which a 48 km stretch around the lake via Attersee Strasse 
		(B 151) and Seeleiten Strasse (B 152) is closed to car traffic. This 
		event is very popular and in 2018 more than 50,000 cyclists and skaters 
		took part.
Since 2011, the "King of the Lake" has been held 
		annually in September on the same route. Anyone can take part in the 
		last 47.2 km long team and individual time trial around Lake Attersee. 
		The race attracted about 1200 riders from all over Europe in 2018. Start 
		and finish are at the marina in the village of Kammer, which belongs to 
		Schörfling am Attersee.
The name Attersee was first mentioned in 798 as super lacum Aterse, 
		the surrounding region, the Attergau, as early as 748 (intra atergauui). 
		The Old High German Atara is primarily the modifier of the compounds 
		Attersee and Attergau. As a pre-Germanic water body name, Atara is 
		usually traced back to the Indo-European adra (watercourse), although 
		Atara is not documented as a water body name and the Attersee is a large 
		lake and not a flowing water body. Another possible interpretation of 
		the name is that the outflow of the Attersee rhymes the Ager (Agria) 
		with Adra and that Attersee and Mondsee together form a system. Mondsee 
		is a comparatively young name and the original naming of the parts of 
		the Mondsee-Attersee system is conceivable: The upper, rear part 
		(Mondsee and Seeache) bore the name Adra, the lower, front part, 
		especially its outflow, the name Agra ( Agria). By renaming the upper 
		part as Mondsee, the scope of the name Adra is displaced downstream to 
		the Attersee. Kammersee refers to the Kammer Castle in Schörfling am 
		Attersee and thus to the Kammergut as a dominion and the Salzkammergut 
		itself.
The place names of Seewalchen and Ainwalchen refer to the 
		presence of the Romans, who were called Walchen by the Germans. Most of 
		the place names on Lake Attersee date back to the early Middle Ages. 
		Above all, place names ending in -ing indicate a very early Bavarian 
		settlement.
Settlement history
The first traces of settlement are documented 
		by Neolithic remains of pile dwellings on the banks of the Attersee. The 
		oldest dating from Seewalchen dates back to around 3900 BC and is 
		attributed to the Mondsee culture. The pile dwelling settlements were 
		mainly located on the flatter shore areas on the west bank from Unterach 
		to the north end in Schörfling and on the east bank in Weyregg. The 
		remains that are now submerged were originally on the shore, as the lake 
		level was lower then. A rise in the lake level in the late Chalcolithic 
		period ended settlement activity on the shore. This could have been 
		caused by climatic changes with increased precipitation, such as 
		occurred in the older Atlantic period. In 2011, the sites of Abtsdorf I 
		and III and Litzlberg Süd were included in the transboundary UNESCO 
		World Heritage Site Prehistoric Pile Dwellings around the Alps. Other 
		finds on the shore prove a settlement continuity up to the beginning of 
		the Bronze Age. Finds of national importance from the Copper Age and the 
		later Bronze Age, such as a razor or a bronze dagger, come from 
		Seewalchen. Both objects can be viewed in the Natural History Museum in 
		Vienna.
On the Buchberg on the north-west bank, an approximately 
		550 by 200 meter ring wall, which encloses the flatter top of the 
		Buchberg, was examined for the first time during an archaeological 
		excavation in 1974. Several finds from the Neolithic to the Bronze Age 
		were recovered. During the archaeological research and teaching 
		excavations by the University of Vienna, it was found that the ramparts 
		on the Buchberg were a Late Bronze Age (circa 1300-800 BC) hilltop 
		settlement.
Celtic-Roman settlement activity is documented by a 
		hoard find at the Kaiserbrunnen in Unterach. A Roman road ran along the 
		east bank through the Weißenbach valley to Bad Ischl. In Weyregg there 
		are remains of a villa rustica with well-preserved mosaics. In front of 
		the villa there are stone walls in the lake, although it is unclear 
		whether they are the remains of a port facility or a fish cold place 
		(piscina).
After the fall of the Western Roman Empire, the 
		Bavarians conquered the country. In the early Middle Ages, the secular 
		center was in what is now Attersee. There was a royal court on the 
		Attersee Kirchberg, which was first mentioned in a document in 885 as 
		"Atarnhova" (Atterhofen) and was visited several times by Frankish kings 
		in the course of the 9th century. A visit by Arnolf of Carinthia is 
		documented for 888.
Rafting
For centuries, rafting was an 
		important economic factor on Lake Attersee. With the construction of the 
		saltworks in Ebensee on the Traunsee in 1604, the timber industry in the 
		southern Attergau was geared towards the production of firewood for the 
		brewhouse. Around 400 cubic meters of wood were needed per week to 
		produce salt in the brewing pans. For the administration of the imperial 
		forests of the monarchy, the forest office was set up in the municipal 
		area of Steinbach. Many valleys were opened up for timber transport; 
		an elaborate system of hermitage was created. The transport of the wood 
		from the Kienbach valley on the north side of the Höllengebirge turned 
		out to be complicated. The wood was first drifted over the Kienbach 
		(Kienklause) to the Attersee and brought to Weißenbach with Plätten. The 
		onward transport was mostly in winter with sled wagons pulled by oxen. 
		From the watershed (reversal tube) it was possible to drift again to the 
		saltworks in Ebensee. In order to facilitate the work, a hydraulic 
		elevator was built in 1722, which overcame a height difference of 50 
		meters, followed by a flume.
Also, wood, especially long 
		ship-timber, was brought in the form of large wooden rafts equipped with 
		several sails from the southern part of the lake to the outlet of the 
		Ager. There the rafts were broken up into smaller parts and drifted over 
		the Ager and Traun to the Danube. In 1877, the commissioning of the 
		Salzkammergut Railway made it possible to transport cheap lignite from 
		the Hausruck districts, which led to the cessation of timber transport 
		to Ebensee. With the expansion of the road network and increasing 
		motorization and the construction of power plants on the rivers, rafting 
		was discontinued in the middle of the 20th century. On the lake 
		promenade in Kammer, above the Ager Bridge, the raftsmen monument 
		reminds of the former transshipment point of raftsmen and shippers.
In the Biedermeier period, landscape painters came to the 
		Salzkammergut and the Attersee. Franz Steinfeld and Rudolf von Alt 
		created works that show the Attersee and its surroundings. The appeal of 
		the Attersee landscape became popular with Impressionism and attracted 
		more and more artists. In the Belle Époque, the Attersee area was a 
		summer resort and known for its artist colonies. From 1900 to 1916, 
		Gustav Klimt spent the summer months at various locations on Lake 
		Attersee. The most popular pictures that Klimt created on Lake Attersee 
		include the views of Schloss Kammer, the Litzlberger Keller, the island 
		of Litzlberg and Unterach. The late impressionist Albert Weisgerber also 
		painted his best-known self-portrait there, Self-Portrait on Lake 
		Attersee (1911). As a contemporary artist, Christian Ludwig Attersee 
		came to Lake Attersee as a sailor and made the name his pseudonym.
		
Gustav Mahler spent the summer months from 1893 to 1896 in the inn 
		"Zum Höllengebirge" in Seefeld in the municipality of Steinbach am 
		Attersee and was inspired by the Attersee landscape in his compositions. 
		On a wide meadow in front of the inn he had a composing house built on 
		the lake shore, in which he completed the Second Symphony and in 1895/96 
		composed a symphony.
Miscellaneous
At the Bundesvision Song 
		Contest 2009, Flowin Immo et les Freaqz sang about the Attersee with the 
		song Urlaub am Attersee
The Austrian writer Hans Eichhorn was a 
		professional fisherman on Lake Attersee.