Loch Ness Lake

Location: Scotland   Map

 

Loch Ness is a long, narrow, extremely deep freshwater loch in the Scottish Highlands. It occupies the floor of the Great Glen (Glen Mor), a major northeast-southwest valley that slices through the Highlands from near Inverness to Fort William. The loch itself stretches about 36-37 km (22.5-23 miles) from southwest to northeast, lying roughly 6-23 miles southwest of Inverness depending on the point measured.
Its surface sits at 15.8 m (52 ft) above sea level. Coordinates are approximately 57°18′N 4°27′W. It is the largest body of freshwater in Great Britain by volume and the second-largest Scottish loch by surface area after Loch Lomond.

 

History

Geological backbone: a fault older than the loch
The Great Glen is a strike-slip fault that slices Scotland southwest to northeast. It formed during the Caledonian orogeny about 430–390 million years ago, when Laurentia (including what is now Scotland) collided with Avalonia (including England). The fault later saw both sinistral and dextral movement; the rocks on either side are shattered for hundreds of metres. That weakness is why later ice could excavate so efficiently.
The bedrock is largely Moine and related Neoproterozoic metasediments (the Loch Ness Supergroup and older Wester Ross units), deposited roughly 900–850 million years ago and later metamorphosed. These are not the “floor” of a simple lake; they are the walls of a tectonic trench later scoured by ice.
During the last Ice Age, ice filled the glen to depths of well over a kilometre. As the ice retreated after about 18,000–10,000 years ago, meltwater and isostatic rebound left a deep, steep-sided basin. Loch Ness itself dates from this deglaciation, around 10,000 BC. Maximum depth is commonly given as about 226–240 m (roughly 740–788 ft). Because the sides drop so steeply, the loch holds more water than any other British freshwater body even though several Scottish lochs are longer or deeper in spots. Peat from the surrounding hills stains the water dark brown; visibility is often only a few metres. Seiches (standing waves caused by wind and temperature) are common.
There is no evidence that the basin was ever an arm of the sea long enough to trap large marine reptiles after the last ice. The loch is landlocked freshwater.

Name
“Loch Ness” is a partial calque of Scottish Gaelic Loch Nis. The loch is named after the River Ness, which flows from its northern end into the Moray Firth at Inverness. The river name is usually derived from an old Celtic word meaning “roaring one.” Later folklore invented stories: a neglected sacred well overflowing until people cried “Tha loch ’nis ann” (“there is a loch now”), or a link to the Irish Ulster Cycle figure Naois. Those are etiological tales, not the linguistic origin.

Picts, Columba, and the first “water beast”
The Great Glen was a political and military corridor long before it was a tourist route. In the early medieval period the dominant Pictish kingdom in the north was Fortriu (Verturiones), with a power centre in the Moray Firth region. Adomnán’s Life of St Columba (written before 704) places the court of the powerful Pictish king Bridei son of Maelchon near the River Ness in the later sixth century. Columba travelled up the glen around 565 to convert Pictish elites.
The same Life contains the earliest written story later attached to Nessie. While Columba was in Pictish territory he came to the River Ness and found people burying a man said to have been seized and bitten by an “aquatic monster” while swimming. When one of Columba’s followers entered the water, the beast rushed at him. Columba made the sign of the cross and ordered it to go back; it fled. The episode is a hagiographic miracle story illustrating Christian power over pagan nature, not a zoological report. Whether it refers to the loch itself or only the river is debated; later monster literature folded it into the Nessie canon.
Pictish symbol stones in the region include a distinctive “Pictish beast”: an elongated, flippered creature that is not a straightforward horse, deer, or salmon. Some writers treat it as proto-Nessie art; more cautious archaeologists treat it as one of several stylised animals in a complex symbolic system. Pictish cemeteries with square and round barrows exist on both sides of the loch (Garbeg and Whitebridge). The rocky promontory later occupied by Urquhart Castle shows early medieval occupation and vitrified stone, and is a plausible candidate for the residence of the Pictish noble Emchath whom Columba baptised.

Urquhart Castle: the loch’s fortress
Urquhart sits on a sandstone promontory on the west shore, controlling the glen. After Alexander II crushed the last Meic Uilleim rebellion in Moray (1229), the lordship went to Thomas de Lundin and then to Alan Durward, who began a stone castle on the older fort site. By the late thirteenth century the Comyns held it.
In 1296 Edward I captured Urquhart at the start of the Wars of Scottish Independence. It changed hands repeatedly. Robert the Bruce took it after 1306; it was one of the few Highland strongholds still holding for the Scots after his death. From the later fourteenth century the MacDonald Lords of the Isles raided Glen Urquhart again and again. The 1545 raid stripped the castle of boats, guns, and stores. James IV granted the barony to Clan Grant in 1509 with orders to repair it; they built the five-storey Grant Tower that still dominates the ruin.
The last garrison left after the first Jacobite rising. In 1692 government troops slighted the gatehouse so Jacobites could not use the place. A storm in 1715 brought down part of the Grant Tower. The ruin became one of the most photographed views on the loch.

Fort Augustus and the Jacobite glen
At the southern head of the loch the village of Kilchuimein (Cille Chuimein, “church of Cumine”) sat where the River Oich meets the water. After the 1715 rising the government built barracks there. General Wade enlarged them from 1729 into Fort Augustus, named for William Augustus, Duke of Cumberland. The fort commanded the glen roads. Jacobites took it after a short siege in 1746; Cumberland later used the area as a base. The military site was sold in 1867 to the Lovat family and given in 1876 to English Benedictines, who built Fort Augustus Abbey on and around the old fort. The abbey ran a school until 1993; the buildings later became holiday apartments.
Wade’s military roads and later civilian roads opened the north shore. That change of access, not a sudden appearance of an animal, is what made the 1930s sightings possible for a mass newspaper audience.

The Caledonian Canal
James Watt surveyed a coast-to-coast canal through the glen in 1773–74. Thomas Telford, with William Jessop, designed and built it after an 1803 Act of Parliament. The aims were a safer route than the Pentland Firth, employment after the Jacobite forfeitures and Clearances, and Highland development. About 38 miles of the 60-mile navigation use natural lochs (Dochfour, Ness, Oich, Lochy); the rest is cut channel with 29 locks, including Neptune’s Staircase at Banavie. The canal opened, still incomplete, in October 1822 and was finished later in the 1840s. Cost overran badly. Loch Ness became a working waterway as well as a scenic one.

The modern monster: 1933 onward
Folklore of water horses (each-uisge) and kelpies existed across the Highlands. Scattered nineteenth-century notes mention odd objects in the loch. The global legend begins in 1933, after the new A82-style road gave clear views of the water. In April, hotel manager Aldie Mackay and her husband reported a large whale-like animal near Abriachan. Correspondent Alex Campbell wrote it up for the Inverness Courier and later used the word “monster.” In July, George and Mrs Spicer reported a long-necked creature crossing the road. In November Hugh Gray took the first widely circulated photograph. In April 1934 the “Surgeon’s Photograph” (R. K. Wilson) became the iconic long-neck image; it was later shown to be a hoax involving a toy submarine. Marmaduke Wetherell’s “footprints,” commissioned by the Daily Mail, were hippopotamus-foot umbrella stands.
The plesiosaur idea took hold in the press in 1933. Later expeditions included the Loch Ness Investigation Bureau (1960s), Tim Dinsdale’s 1960 film (later judged consistent with a boat), Robert Rines’s underwater “flipper” photos of the 1970s, Operation Deepscan (1987), Project Urquhart (1990s), BBC sonar in 2003, and environmental DNA work that found abundant eel DNA but no unknown large vertebrate. No carcass, breeding population, or unambiguous high-resolution image has ever been produced. Explanations that fit known physics and biology include boat wakes, seals, sturgeon, large eels, floating logs (especially waterlogged Scots pine), seiches, and expectation. The legend is now an economic fact: the loch draws large numbers of visitors each year.

Other modern episodes
On New Year’s Eve 1939 an RAF Wellington bomber ditched on the loch; the wreck was found decades later by monster-hunters using side-scan sonar. In 1952 John Cobb died attempting a water-speed record in Crusader. Swimmers and water-skiers have since completed the length of the loch. Core samples from the bed record industrial soot and mid-twentieth-century fallout, a 12,000-year mud archive rather than a dinosaur graveyard.

 

Geography

Physical dimensions and bathymetry
Length: 36.2 km (22.5 miles)
Maximum width: 2.7 km (1.7 miles); average width about 1.5 km
Surface area: 56 km² (21.8 sq mi)
Volume: 7.45-7.5 km³ - more water than all the lakes of England and Wales combined
Maximum depth: 227-230 m (745-755 ft); second deepest Scottish loch after Loch Morar
Mean depth: 132 m (433 ft) - the greatest mean depth of any large Scottish loch
Shoreline: about 86 km
Catchment area: about 1,770-1,775 km²

The basin is remarkably regular and steep-sided, dropping quickly from the shoreline to a relatively flat deep floor. Two main deep basins (each reaching around 220 m) are separated by a shallower rise or sill opposite the River Foyers delta. Historical sounding surveys recorded 754 ft; later sonar work confirmed similar figures, with one claimed deeper crevice later identified as an anomaly.
The steep nearshore drop-off and fluctuating water levels leave little shallow littoral zone, which limits aquatic plants.

Geological origin
Loch Ness is a glaciated tectonic lake. It follows the Great Glen Fault, a major strike-slip fault that formed during the Caledonian Orogeny hundreds of millions of years ago and remains a line of crustal weakness. Successive Pleistocene ice sheets exploited this zone, overdeepening the valley into a classic glacial trough. The last major ice retreat left the present freshwater basin about 10,000-12,000 years ago.
Surrounding bedrock is mostly Precambrian Moine schists and gneisses, with some Old Red Sandstone on the southeast side. The fault juxtaposes different rock types across the glen. Glacial scouring produced the steep walls and the absence of islands except for Cherry Island (a small crannog) near Fort Augustus.
The loch floor lies well below present sea level over most of its length.

Surrounding topography
The glen sides rise steeply from the water. On the southeast they average 800-1,000 ft (240-300 m), on the northwest 1,200-1,500 ft (365-457 m), with higher summits nearby. Notable heights include Meall Fuar-mhonaidh (Mealfourvonie, 2,284 ft / 696 m) on the northwest side and Beinn a’ Bhacaidh (1,812 ft) on the southeast. The landscape character is a broad, steep-sided V-shaped glen with limited flat ground except at bay mouths such as Urquhart Bay and Invermoriston Bay.
Lower slopes carry conifer plantations and mixed woodland; higher ground is open moorland and peat. Burns and small rivers cut rapid, often waterfall-bearing courses down the sides and build small alluvial fans or deltas where they enter the loch.
Settlements cluster at these flatter points and at the ends: Fort Augustus at the southwest head, Invermoriston, Drumnadrochit (Urquhart Bay), Foyers, Dores, Abriachan, and Lochend toward the northeast.

Hydrology
Primary inflows include the River Oich (and Caledonian Canal) from Loch Oich at the southwest end, plus the Rivers Moriston, Foyers, Enrick, Coiltie, Tarff, and numerous burns. The single main outflow is the River Ness (and canal) at the northeast end, which passes through the Bona Narrows and Loch Dochfour before reaching the Moray Firth at Inverness.
The loch is oligotrophic (nutrient-poor) because the hard-rock catchment yields few nutrients. Water is peaty and has low visibility. It is dimictic, mixing twice a year. Residence time is about 2.8 years. Seiches (standing waves caused by wind or differential heating) are common. Water level is partly regulated by the Caledonian Canal (opened 1822) and later hydroelectric schemes such as Glendoe.
The Caledonian Canal links Loch Ness with Loch Oich and Loch Lochy, creating a through-route from the North Sea to the Atlantic across the Great Glen.

Climate and environment
The Highland climate is cool and wet, with frequent cloud, rain, and limited sunshine. Snow can occur on surrounding hills. The large water mass moderates local temperatures but the steep-sided glen can channel winds. Sparse aquatic vegetation and limited abyssal fauna result from the combination of steep sides, depth, peat staining, and water-level changes.
The drainage basin remains relatively low-density, with woodland, grassland, and moorland dominating. Tourism focused on the loch and its folklore is the main human pressure.
This combination of tectonic setting, glacial overdeepening, extreme depth-to-width ratio, and peat-stained oligotrophic water makes Loch Ness one of the most distinctive large lakes in the British Isles.

 

The Loch Ness Monster

The loch that makes the story work
Loch Ness sits in the Great Glen fault, a long, straight trench that slices the Highlands from Fort William to Inverness. The loch is about 36 km long and only 1.5-2.7 km wide, yet it holds more fresh water than all the lakes of England and Wales combined. Maximum depth is around 227-230 m (about 750 ft); mean depth is roughly 132 m. The water never freezes. Peat from the surrounding hills stains it tea-brown, so visibility underwater is often only a metre or two. Steep sides drop quickly to a relatively flat floor. Seiches (standing waves), boat wakes that persist for minutes, and floating logs or mats of vegetation all look like "something large" from the A82 road that hugs the north-west shore.
Urquhart Bay, next to the ruined castle, is the deepest trench and historically the busiest "sighting" zone. That combination of depth, murk, and a tourist road is why the legend never quite dies.

From saint to newspaper monster
The oldest written story is in Adomnán’s Life of St Columba (late 7th century). Around 565 CE the saint is said to have confronted a water beast in the River Ness that had just killed a man; Columba ordered it back and it fled. Whether that was a real animal, a later hagiographic flourish, or a memory of something else is unknown. Pictish stones from the region show long-bodied aquatic beasts, but they are not uniquely "Nessie." For more than a thousand years the loch was simply a deep Highland lake.
The modern monster begins in 1933. A new road along the loch opened views that had been hidden by trees. On 14 April 1933, hotel managers John and Aldie Mackay reported a whale-like animal near Abriachan. In August, George Spicer and his wife described a long-necked "prehistoric" creature crossing the road. Local journalist Alex Campbell helped coin and spread the phrase "Loch Ness Monster." Newspapers, still hungry after the Depression, ran with it. The plesiosaur idea - a surviving marine reptile from 65 million years ago - was already in print by October 1933. That is a biological non-starter: the loch itself only formed after the last ice age, about 10,000 years ago, long after plesiosaurs were gone, and it is fresh water.

The images that built the brand
The single most famous picture is the "Surgeon’s Photograph" of April 1934, published by the Daily Mail and credited to London gynaecologist R. K. Wilson. It shows a small head and long neck rising from rippled water. In 1994 researchers published a deathbed account by Christian Spurling: the "monster" was a toy submarine with a sculpted plastic-wood head, built as revenge after the same newspaper had humiliated Spurling’s stepfather, big-game hunter Marmaduke Wetherell, over fake "monster footprints" made with a hippopotamus-foot umbrella stand. Most historians now treat the photo as a hoax.

Other well-known pieces of "evidence" have similar problems:
Tim Dinsdale’s 1960 film shows a dark hump leaving a wake. Dinsdale believed it was an animal. Later analysis has argued it is consistent with a boat, and no independent confirmation followed.
Peter MacNab’s 1955 two-hump photo near Urquhart Castle is often cited; critics point to timing, possible double exposure, or a boat wake.
Robert Rines and the Academy of Applied Science (1972-1975) produced underwater "flipper" and "body" photos plus sonar contacts. The images were heavily processed; later examination found they do not show a living animal of the claimed size. Rines later suggested the creature might have died from warming water.
Countless later photos and videos resolve into waves, birds, deer, seals, logs, or inflatable toys.

Sonar has repeatedly picked up large or fast-moving contacts. Operation Deepscan (1987) lined 24 boats across the loch; three unexplained contacts appeared near Urquhart Castle and then vanished. A 2003 BBC survey using hundreds of sonar beams found nothing the size of a large unknown animal. Contacts can be fish shoals, temperature layers, debris, or equipment artefacts. They are not a carcass.

What science actually found in the water
The most decisive modern study is the 2018 environmental DNA (eDNA) survey led by Neil Gemmell of the University of Otago. Researchers took about 250 water samples from many sites and depths and sequenced DNA shed by organisms living in or near the loch. They recovered roughly 3,000 species: the known fish of the loch, amphibians, birds, mammals from the surrounding land, and a great deal of European eel DNA at almost every station. They found no reptile DNA, no sturgeon, no catfish, no shark, and nothing that would sit between crocodilians and birds (the expected neighbourhood of a plesiosaur).
Gemmell left one door ajar: eels are abundant, and a very large eel could look serpentine from a distance. A later look at catch data suggested that eels over about a metre are already rare in the loch, and a 6-metre eel is statistically near-impossible. So giant eels might explain some "long dark shape" reports. They do not explain a 20-50 ft long-necked reptile.
Other mundane sources of sightings are well documented: boat wakes that look like a string of humps, standing waves, otters or deer swimming, cormorants or divers in a line, floating peat or logs, and expectation. After 1933, people arrived primed to see a monster. The same loch that hid ordinary objects in peat-stained water also hid the fact that those objects were ordinary.

Why the hunt continues
Nessie is now an economic animal. Drumnadrochit has the Loch Ness Centre. Urquhart Castle (Historic Environment Scotland) sits on the classic viewpoint; adult tickets are around £14 online / £16 at the gate, parking must be booked with the ticket, and summer last entry is late. Jacobite and other operators run cruises with sonar displays. Sightings registers still add reports every year - including claims in 2026 of a "seven-metre" eel-like shape. Researchers still talk about follow-up eDNA work. An autonomous underwater vehicle even snagged a 1970s camera trap left by monster hunters, still intact after decades on the bottom. None of that has produced a type specimen.

 

History of Alleged Sightings

Before 1800

The first known mention of the sea monster dates back to the year 565. In the Vita Columbae of Abbot Adamnan, a description of the life of Columbanus of Iona, it is related how the saint saved the life of a Pict attacked in the River Ness. “Columbanus made the sign of the cross in the air and called on the name of God while commanding the wild beast: 'No more! Don't touch him! Back off immediately!’ Hearing the words of the saint, the animal fled in fear, as if being pulled from there by ropes, even though it had been only a short distance from the man.”
1527: Duncan Campbell claims to have seen a terrible monster on the banks of Loch Ness.
16th Century: According to an old chronicle, a huge beast rose from Loch Ness and killed three men.
Around 1650, an English chronicler reported that the famous Loch Ness was known for its "floating islands".
On August 12, 1661, a sturgeon estimated to be 12 feet long was observed near Inverness.

 

Sightings after 1800

There were other sightings in 1872 and 1903, among others. However, the creature only became famous on May 2, 1933, when regional newspapers first reported the sighting of a monster. The Inverness Courier newspaper ran an article about locals seeing "a huge animal diving in the hole". The report of the 'monster' (a term chosen by the Courier editor) became a media sensation: London newspapers sent reporters to Scotland and a circus even offered £20,000 to capture the monster.
In the fall of 1933, A. H. Palmer, who allegedly observed Nessie at seven o'clock on August 11, 1933, described the creature holding its head, which they saw from the front, low in the water. Its mouth was between twelve and eighteen inches long and opened and closed. He estimated the maximum jaw opening to be about six inches.
A photo allegedly taken by surgeon R.K. Wilson on April 19, 1934 sparked renewed interest in the Loch Ness Monster. It appears to depict a large animal with a long neck gliding through the water. Decades later, on March 12, 1994, Marmaduke Wetherell claimed to have faked the photo after he was hired by the Daily Mail newspaper to hunt down Nessie (the photo was then printed as "final proof"). Wetherell also stated that Wilson did not take the photo. His name was only used to increase the credibility of the photo. As early as 1993, another man claimed to have been involved in such a forgery.
Frank Searle is not the only “Nessie hoaxer” to be mentioned, but he is the most well-known: Frank Searle, a former soldier, appeared at Loch Ness in June 1969 and at first seriously engaged in the search for Nessie. In his later years, when he ran a houseboat and a monster exhibition at Lower Foyers, he frequently presented rather dubious evidence of the monster's existence. His photographs showed z. B. floating tree trunks or were even kept for photomontages. From 1977 to 1979 Searle was assisted by a Belgian admirer as "assistant monster huntress". In 1985, Searle temporarily disappeared. Paralyzed by a stroke from 1998, Searle, unmarried from 1986, lived alone with his cats in Fleetwood, Lancashire until his death on March 26, 2005.
In 1972, a group led by US patent judge Robert Rines took some underwater photos. One was an inaccurate image, perhaps a rhombic fin (some saw air bubbles or a fish fin in it). Based on this photograph, photographer and conservationist Sir Peter Scott announced in 1975 that the scientific name of the monster under which Nessie would be included in the British register of officially protected wildlife should be Nessiteras rhombopteryx. However, the name is an anagram of monster hoax by Sir Peter S., possibly due to Sir Peter's skepticism.
On 28 May 2007 Gordon Holmes from Yorkshire recorded new video of the alleged Loch Ness Monster. It shows an eel-like object that is about 15 meters long and has a speed of about ten kilometers per hour.
According to a newspaper report in the English tabloid The Sun dated August 26, 2009, Jason Cooke claims to have discovered the monster in Google Earth at the coordinates ♁57° 13′ N, 4° 34′ W. However, when you zoom in a lot, you immediately notice that it is the outline of a small boat and its wake.
In April 2014, it was announced that the Loch Ness Monster was visible on Apple's map service. According to the Daily Mail, two men independently came across the suspicious satellite image and forwarded the information to the Official Loch Ness Monster Fan Club.

Truth or fiction, Loch Ness still draws curious onlookers for a chance to see a monster. There seems no shortage of new films, videos and witness testimonies of this elusive creature.

Theories

Some accounts of the monster's appearance, including historical accounts, indicate a resemblance to the extinct Plesiosaurus. From the available material of this Mesozoic creature, a large, long-necked, small-headed animal that propels itself with fins can be constructed. The supposed connection between Plesiosaurus and the Loch Ness monster has become a well-known topic in cryptozoology. But most scientists, as well as the vast majority of serious cryptozoologists, consider the idea that the Loch Ness monster is a Mesozoic remnant to be very unlikely: a large colony of such animals would have to exist to ensure long-term existence. Since plesiosaurs, being reptiles, have to come to the surface to breathe, this would result in far more frequent sightings than is actually the case. Many biologists also believe that Loch Ness is not large or productive enough to support even a small family of these animals. Many other reasons, such as the geological formation of Loch Ness after the last glacial period, clearly speak against a large reptile in the lake.

Other sightings do not match the appearance of the plesiosaurs or any other aquatic animal: In April 1923, Alfred Cruickshank claimed to have seen a ten-foot-long animal with a curved back and four elephant-like feet crossing the road in front of his vehicle. Other putative sightings are more indicative of camel- or horse-like animals.

Scientific attempts to explain the sightings of monsters vary widely: misidentifications of seals, fish jumping or swimming close to the water surface, waterfowl, logs, mirages or unusual wave patterns, the latter because Loch Ness is predestined for standing waves (so-called seiches) due to its symmetrical topography ) is. Swimming deer could also account for some sightings of the monster with its neck sticking out of the water. It is likely that each of these explanations has contributed to the monster myth that has long since become a mass phenomenon.

In rivers near Loch Ness there are very large sturgeons that could easily be mistaken for monsters because of their size and unusual appearance. A new theory says the monster is just a hallucination caused by gushing water caused by minor volcanic activity at the bottom of the hole. This argument is supported - to a small extent - by the fact that there appears to be a connection between the sightings and tectonic movements.

More recent extensive DNA analyzes of the organic material from the lake confirm the assumption made in research circles as early as 1933 that the sightings were most likely larger eels.

 

Arguments

Arguments against the existence of the monster
A typical case of an alleged sighting with unsatisfactory "facts" about Nessie is the case of October 1871: In this event, D. Mackenzie described something that was first moving slowly and then receding at a faster speed. Witnesses said the monster has a (sometimes not just one) hump that looks like an upside down boat. This story is repeated many times, but no original source from 1871 is ever cited, which puts the articles in a bad light.

In July 2003, the BBC reported that an extensive survey of Loch Ness carried out by a BBC team using 600 sonar beams found no sign of a "sea monster". The BBC team concluded their report by saying Nessie didn't exist.

The famous 1934 photo is believed by some to be a fake, based on testimony given by photographer Marmaduke Wetherell shortly before his death. Wetherell claimed the photo, which garnered the monster a lot of attention, was all clay taped to a toy submarine. Even before Wetherell's statements, some had speculated that the photo did not show a monster at all, but rather several otters following one another or a diving bird. However, there are two photos from 1934 that show slightly different poses, leading to the argument that the photos were not faked in this way. On the other hand, it should also be considered here that the pose of a model made of clay or plasticine can be slightly modified very easily, giving the impression of a series of movements.

The latest explanation for the 1933 and 1934 photos comes from Scottish paleontologist Neil Clark. In his opinion, the animal depicted in the photos was nothing more than a swimming elephant from the Olympia circus. The circus director at the time, Bertram Mills, even put up a £20,000 bounty on his head, knowing full well that the "monster" was in his circus.

The sometimes very different depictions of Nessie also speak for deceptions or falsifications in many sightings and photographs. Sometimes the popular long-necked 'Plesiosaurus' type is 'seen', sometimes also the no less popular vertical-coiling 'humped sea snake' type, both of which are entirely different. Of all vertebrates, only a few mammals, such as whales and otters, move with vertical motion, but not a single species, living or extinct, would be able to create multiple consecutive humps above the water surface like the "humpback sea snake" when swimming.

In this context it is worth mentioning that the first reports that Nessie resembled a Plesiosaurus date back to 1933. It wasn't until this year that Nessie really got famous. This year's sighting was made shortly after the release of the film The Fable of King Kong. The resemblance of the figure of Nessie described later is striking with a creature that attacks the main characters of the film at a lake in the jungle. Given that alien creatures were a lot easier to impress viewers then than they are now, it's easy to see how a little-known rumor about a creature that lives in Loch Ness could be compared to the creature depicted in the film connected and thus created an extremely effective and lucrative legend.

Arguments for the existence of the monster
The sightings and video footage (see #History of Alleged Sightings) are indicative of the existence of a large creature in Loch Ness, however most photographs and footage have been identified as forgeries or misinterpretations.