Location: Juneau Map
Area: 3,283,246 acres (13,287 km²)
Official site
Fees and permits
There are no entry
fees for non-commercial users of the park.
The Glacier Bay National Park is a national park in the USA in
southern Alaska, near Juneau, in the so-called Alaska Panhandle.
There are over 50 named glaciers in the park, 7 of which extend into
the tidal waters of the bay called Glacier Bay, which is crossed by
fjords such as Tarr Inlet. Chunks of ice over 50 meters high often
break off and fall explosively into the water (calving).
The
region around Glacier Bay was initially protected as a national
monument on February 25, 1925. The national park, which was created
in 1980 by the Alaska National Interest Lands Conservation Act, was
expanded by 2,100 km² and covers an area of 13,287 km². A large part
of it (10,784 km²) is designated as a wilderness area. The park is
an IUCN Category V protected area (Protected Landscape/Protected
Marine Area). The park is classified by UNESCO as part of an
international biosphere reserve and a world natural heritage site.
In 1979, Canada's Kluane National Park, along with the US
Wrangell-St. Elias National Park, was declared a transboundary
natural heritage site. This world natural heritage was then
supplemented in 1992 by the Glacier Bay National Park and in 1994 by
the Canadian Tatshenshini-Alsek Provincial Park to form a joint and
coherent world natural heritage. A small extension area in the far
west of the national park is designated with the lower protection
status of a National Preserve. Hunting was already common here
before it was placed under protection, and it is still permitted.
The national park's glaciers are of scientific importance
because they now mark the retreat of a smaller ice age that dates
back 4,000 years. When Captain George Vancouver explored the region
in 1794, the bay was almost completely filled with ice from
glaciers. The ice was several kilometers wide and over 1000 meters
high. In 1879, less than 100 years later, the naturalist John Muir
discovered that the glaciers had retreated significantly. The ice
mass now known as Muir Glacier has shortened by 77 kilometers in
these 85 years. Today this retreat of the glaciers has slowed. Three
glaciers continue to retreat, while eight are growing longer.
Scientists are researching the influence of glacier movement on the
global climate and the flora in the areas released by the glaciers.
The approximately 380,000 visitors annually arrive mostly on
cruise ships, or in some cases on ferries operated by the National
Park Service. The only road leads from the small airport through the
town of Gustavus, both outside the park boundaries in the southeast,
to the visitor center, the campground and the Glacier Bay Lodge, the
only hotel in the park.
There are over 100 glaciers in the
four mountain ranges. The highest point in the park is on the flank
of the 4,663 meter high Mount Fairweather, whose summit lies outside
the park boundaries on the Canadian side. Wolves, brown bears, black
bears and mountain goats are characteristic large animal species of
the national park. Numerous marine mammals such as killer whales,
humpback whales, gray whales, sea otters, seals and Steller sea
lions can also be found in the coastal waters. The area is also one
of the few places where the endangered Short-billed Auk still
occurs.
Other mammals in the area include snowshoe hares,
gray marmots, beavers, ursons and red squirrels. The Sitka
black-tailed deer has its northernmost occurrence in this region.
Since the 1960s, moose have also appeared in the area, which were
not previously found here. The coyote is also a recent immigrant. In
the near future, pumas could also advance further and colonize the
park. Other predators such as wolverine, North American river otter,
mink and red fox also live in the park. Canada lynx, on the other
hand, are rare.
Best Time to Visit
The main visitor season runs from late May
through early September, with peak visitation in July. Services
(lodge, visitor center, tours) are limited outside this window.
June–July: Longest daylight hours (nearly 24 hours), peak wildlife
activity (especially humpback whales), and relatively drier weather.
Ideal for kayaking and glacier viewing.
Late May or August–early
September: Fewer crowds, good wildlife viewing, and potential for
clearer skies or fall colors. Shoulder seasons can offer better
deals but cooler/wetter conditions.
Weather: Maritime climate
with cool summers (highs 50–60°F / 10–15°C) and frequent rain (about
70 inches annually at sea level). Pack layers, waterproof gear, and
expect rapid changes. Higher elevations are colder and snowier.
Hypothermia is a year-round risk.
How to Get There
There
are no roads to Glacier Bay. Most visitors fly or ferry to Gustavus
(about 10 miles from Bartlett Cove, the park headquarters), then
proceed from there.
By Air: Flights from Juneau (about 25–30
minutes) via scheduled or charter services. Convenient but
weather-dependent.
By Boat: Alaska Marine Highway ferry from
Juneau (seasonal) or private/charter boats. Slower but scenic.
Cruise Ships: The most common way for many visitors; ships enter the
bay for a full day of ranger-narrated viewing.
Independent
travelers often base in Gustavus or at Glacier Bay Lodge in Bartlett
Cove. Book transportation, lodging, and tours well in advance,
especially for peak summer.
Where to Stay and Camp
Glacier
Bay Lodge (in Bartlett Cove): The only lodging inside the park.
Rustic rooms, restaurant, visitor center, and easy access to trails
and the day tour boat.
Gustavus: Small town with boutique lodges,
B&Bs, and services (groceries, restaurants, charters).
Camping:
Free walk-in campground at Bartlett Cove. Wilderness/backcountry
camping requires a permit (free) and bear-resistant food storage.
Limited drop-off service via tour boat for deeper bay access.
No
entrance fee for the park itself.
Top Things to Do and
Visiting Tips
1. Glacier Bay Day Tour (Highly Recommended)
The
ranger-led full-day catamaran tour from Bartlett Cove is the best
way for most visitors to see the West Arm’s tidewater glaciers
(e.g., Margerie, Grand Pacific), wildlife, and fjords. It lasts
about 8–9 hours. Book early. Stay on deck for wildlife and glacier
calving. Binoculars and cameras are essential.
2. Hiking in
Bartlett Cove and Beyond
Easy Trails (Bartlett Cove):
Forest
Trail: 1-mile loop through rainforest and beach.
Tlingit Trail:
Short stroll with cultural sites and views.
Bartlett River Trail:
4 miles RT to estuary (great for birds, possible seals/salmon).
Bartlett Lake Trail: 8 miles RT, more challenging, rewarding
solitude.
Shoreline Hiking: Explore beaches at low tide for
intertidal life. Extend to Point Gustavus (6+ miles one way).
Wilderness Hiking: No maintained trails beyond Bartlett Cove. Be
prepared for dense alder brush, muddy/slippery conditions, and
route-finding. Wear sturdy waterproof boots ("Southeast Alaskan
sneakers").
Hiking Tips: Let someone know your plans. Trails can
be wet and rooty—watch your step. Carry rain gear, water, snacks,
and bear spray. Join ranger-led walks when available.
3.
Kayaking and Boating
Sea kayaking offers intimate access to
coves, wildlife, and shorelines. Rentals and guided trips available
from Bartlett Cove; day or multi-day options. The tour boat can drop
off kayakers. Permits required for private boats in peak season
(limited, reserve ahead).
Tips: Know tides (up to 25 feet) for
safety. Beginners can join guided trips. Pack for variable weather.
4. Wildlife Viewing
Abundant marine and terrestrial life:
Marine: Humpback whales (peak summer), orcas, harbor seals, sea
otters, porpoises.
Land: Black/brown bears, moose, mountain
goats, bald eagles, various birds (puffins, etc.).
Viewing Tips:
Use binoculars; stay on deck during key moments on tours. Be
patient—wildlife is unpredictable. Maintain distances (100 yards for
bears/wolves, 25 yards for others). Never approach or feed animals.
5. Other Activities
Ranger programs, evening talks, and
Junior Ranger activities at the visitor center/lodge.
Flightseeing for aerial glacier views.
Sport fishing (Alaska
license required) or river rafting on the Alsek (permits needed).
Essential Practical Tips
What to Pack: Layers (wool/fleece,
synthetics), waterproof jacket/pants/boots, hat, gloves, binoculars,
sunscreen (even on cloudy days), insect repellent, binoculars,
camera, reusable water bottle. No bad weather, only bad clothing.
Safety: Bear awareness is critical—carry and know how to use bear
spray, make noise on trails, store food properly. Watch for slippery
surfaces and tides. Hypothermia risk even in summer. Check current
conditions and alerts on nps.gov/glba.
Permits and Reservations:
Backcountry permits, private boat permits (June–Aug), and camping
orientations at the Visitor Information Station. Book lodge/tours
early.
Accessibility and Services: Limited cell/internet. Visitor
center at lodge has exhibits and rangers. Fuel, limited groceries at
Bartlett Cove.
Leave No Trace: Protect this pristine
wilderness—pack out everything, stay on durable surfaces, respect
wildlife and cultural sites.
For Cruise Visitors: Maximize time
on deck, especially near glaciers and bay entrance for whales.
Listen to ranger talks.
Geological and Prehistoric Glacial History
The bay's modern form
results primarily from the Little Ice Age, a relatively recent glacial
advance (geologically speaking) that peaked around 1750. Earlier, over
millions of years during the broader Pleistocene Ice Age (ending
~10,000–11,000 years ago), massive continental ice sheets repeatedly
sculpted the region, carving deep fjords and U-shaped valleys.
Around 1680–1750: A massive glacier filled what is now Glacier Bay,
extending into Icy Strait nearly to Lemesurier Island. It was over 4,000
feet thick in places, up to 20 miles wide, and stretched more than 100
miles toward the St. Elias Mountains. This advance displaced human
inhabitants and created a broad, harsh valley.
Post-1750: Rapid
retreat began due to marine erosion and climatic shifts—one of the
fastest documented glacial retreats in the world. By the late 1700s, it
had pulled back significantly, forming the beginnings of the bay.
Today, the bay stretches about 65 miles from its mouth, with the ice
having receded that far from its Little Ice Age maximum. Over 50 named
glaciers remain (many tidewater), though most are thinning or retreating
amid broader climate trends. A few, like Johns Hopkins Glacier, remain
relatively stable due to heavy snowfall in the Fairweather Mountains.
The area serves as a living laboratory for studying plant succession,
from barren rock to pioneering algae/mosses, then shrubs, cottonwoods,
spruce-hemlock forests, and mature ecosystems.
Indigenous
History: The Huna Tlingit (Łingít)
The Huna Tlingit have deep
ancestral ties to the area, known in their language as Sit' Eeti Gheeyí
("the bay in place of the glacier") or earlier names reflecting its
glacial nature. Oral histories, place names, and archaeological evidence
indicate they lived in lower Glacier Bay for centuries (or longer)
before the Little Ice Age advance.
Habitable lower bay villages
and fish camps existed near present-day Bartlett Cove and Rush Point
until ~1700–1750, when the advancing glacier forced relocation. They
dispersed to areas like Icy Strait, Excursion Inlet, and northern
Chichagof Island, eventually settling primarily in Hoonah (Xunniyaa,
"shelter from the north wind").
Evidence of human presence in the
broader region dates back over 9,000–13,000 years (e.g., nearby
Groundhog Bay), with northwest coast cultural traits evident for at
least 3,000 years. The oldest known site directly in the park (Dundas
Bay) is ~800 years old. Tlingit people greeted early European explorers
in nearby areas like Lituya Bay.
Resilience and return: As glaciers
retreated in the 19th–20th centuries, the Huna Tlingit reconnected with
their transformed homeland. Today, they maintain strong cultural ties
through traditional practices (e.g., gull egg harvesting), the Xunaa
Shuká Hít (Huna Tribal House) at Bartlett Cove (dedicated 2016 as a
cooperative project with the NPS), totem poles, and co-management
efforts.
This history underscores themes of displacement,
adaptation, and renewal central to Tlingit connections with the land.
European Exploration and Early Scientific Interest
1794: Captain
George Vancouver's expedition (HMS Discovery) surveyed the area. They
found only a small indentation in a massive glacier wall—mapping it as
essentially filled with ice.
1786: French explorer La Pérouse visited
nearby Lituya Bay, where indigenous people greeted his crew.
1879:
Naturalist John Muir (often called the "Father of the National Parks")
visited by canoe with Tlingit guides. He observed rapid retreat
(glaciers receding up to a mile per year at times) and was captivated by
the active glacial processes. Muir's lyrical writings in Travels in
Alaska (1915) and lectures transformed public perception of Alaska from
a frozen wasteland to a place of sublime beauty. He returned multiple
times (including 1899 with the Harriman Expedition) and advocated for
preservation. Muir Glacier was named in his honor.
Muir's efforts
drew scientists, adventurers, and early tourists. Other notable visitors
included geologists and ecologists studying active glaciation and
succession.
Conservation and Establishment as a Protected Area
Pioneer plant ecologist William S. Cooper began studies in 1916,
documenting ecological recovery in the wake of glacial retreat. Inspired
by the "wild land, undefiled," he and colleagues in the Ecological
Society of America advocated for protection as a natural laboratory.
February 26, 1925: President Calvin Coolidge proclaimed Glacier Bay
National Monument under the Antiquities Act. It was initially smaller
than today's park, focused on glacial features, emerging ecology, and
accessibility.
Early development included tourism (cruise ships),
limited homesteading, and scientific research. Commercial fishing had a
long history in the area but later faced restrictions.
1978:
President Jimmy Carter expanded the monument via proclamation (part of
broader Alaska protections).
December 2, 1980: The Alaska National
Interest Lands Conservation Act (ANILCA), signed by Carter, redesignated
it as Glacier Bay National Park and Preserve, adding significant acreage
(including northwest to the Alsek River and Dry Bay). The preserve
allows certain uses like sport hunting.
Further recognitions:
Part of the Glacier Bay–Admiralty Island Biosphere Reserve (1986,
UNESCO).
Binational UNESCO World Heritage Site (1979/1992).
Modern Era and Ongoing Significance
The park has no roads—access is
by boat or small plane, primarily from Gustavus or Bartlett Cove (with
the Glacier Bay Lodge). It attracts hundreds of thousands of visitors
annually for wildlife (humpback whales, bears, seals, eagles), kayaking,
cruising, and science.
Key themes include:
Dynamic change:
Glaciers continue to evolve; the bay offers insights into climate
impacts, with overall ice loss but some variability.
Co-stewardship:
Strong NPS collaboration with the Huna Tlingit, including cultural sites
and resource management.
Research legacy: From Muir and Cooper
onward, it remains vital for glaciology, ecology, archaeology, and
climate studies.
Location and Regional Context
The park lies in the northernmost
section of the southeastern Alaska panhandle (Hoonah-Angoon Census Area
and Yakutat City and Borough), west of Juneau. It sits between roughly
58° and 60° N latitude, bordering Canada to the north and east. The
Canada-U.S. border comes within about 15 miles (24 km) of the ocean near
Mount Fairweather.
Key geographic divisions include:
Glacier Bay
itself: A major fjord system extending about 65 miles (105 km) from Icy
Strait (connecting to the Gulf of Alaska via Cross Sound) northward to
the heads of its arms.
Icy Strait-Cross Sound, Outer Coast, and parts
of Admiralty Island areas.
Brady Icefield on a peninsula between the
ocean and Glacier Bay.
Eastern boundaries along the Takhinsha
Mountains and Chilkat Range (with Lynn Canal), and northwestern areas
along the Alsek River valley to Dry Bay.
The park adjoins Tongass
National Forest and is part of the larger Kluane / Wrangell–St. Elias /
Glacier Bay / Tatshenshini-Alsek UNESCO World Heritage Site, one of the
world's largest protected natural areas. No roads access the park;
visitors arrive primarily by boat (including cruise ships) or plane,
with headquarters at Bartlett Cove near Gustavus.
Topography and
Landforms
The landscape features extreme vertical relief: steep
mountains rise directly from tidewater, creating one of the highest
coastal mountain ranges globally. Mount Fairweather (15,300 feet / 4,663
m) is the tallest peak, part of the Fairweather Range. Several other
peaks exceed 10,000 feet.
Fjords and Inlets: Glacier Bay is a
classic fjord — a glacially eroded, U-shaped valley flooded by the sea,
with depths often exceeding 1,000 feet. It branches into major arms
(e.g., West Arm/Tarr Inlet and East Arm/Muir Inlet) and numerous smaller
inlets. Steep walls limit land access, and underwater features channel
nutrient-rich ocean water.
Coastline: Roughly 700 miles of wild,
indented shoreline with beaches, straits, and islands. Big tides, strong
currents, and frequent storms shape the coast.
Mountains and
Icefields: The Fairweather Range and associated ranges (Saint Elias
influence) dominate the west. Brady Icefield caps parts of the
peninsula. Eastern areas include the Takhinsha and Chilkat ranges.
Other Features: Moraines, outwash plains, braided rivers (e.g., Alsek
River), lakes dammed by glaciers, and post-glacial rebound (land rising
as ice weight is removed).
The terrain transitions from temperate
coastal rainforest in the south (deglaciated ~200+ years ago) to barren,
recently exposed land and alpine tundra northward. About a quarter of
the park remains ice-covered.
Geology and Tectonics
The
extreme topography results from the park's position at the active
boundary between the North American and Pacific plates, along the
Fairweather-Queen Charlotte Fault system (a major strike-slip/transform
boundary). Plates converge obliquely at ~50 mm/year, causing uplift,
earthquakes, and terrane accretion.
Terranes: Four main tectonic
terranes (Yakutat, Chugach, Wrangellia, Alexander) form a
northwest-southeast mosaic. These are fragments of ancient volcanic
arcs, seafloor, and continental margins "smeared" together over millions
of years.
Rock Types: Paleozoic sedimentary rocks (limestones,
argillite) dominate the west side (up to 26,000 feet thick sequences).
Metamorphosed rocks, granitics, diorites, and evidence of ancient
subduction zones (e.g., Tarr Inlet suture zone) are present.
Seismic
Activity: Frequent earthquakes and occasional landslides/tsunamis (e.g.,
historic Lituya Bay events). Post-glacial rebound continues.
Glaciation has heavily modified the landscape, carving deep valleys and
depositing moraines and gravels.
Glaciers and Glacial Features
The park is famous for its dynamic glaciers, remnants of the Little Ice
Age (max ~1750 AD). Historically, a massive glacier filled the entire
bay (~100 miles long, thousands of feet thick). Rapid retreat (one of
the fastest recorded) since the late 18th century has exposed the bay,
leaving ~50 named glaciers and over 1,000 total (many smaller).
Tidewater Glaciers: Key attractions (e.g., Johns Hopkins, Grand Pacific,
Margerie). These calve massive icebergs (up to 200 feet high) into the
bay. Johns Hopkins is particularly active and hazardous to approach
closely.
Dynamics: Glaciers flow under their own weight, eroding
U-shaped valleys. Tidewater ones are sensitive to submarine melting and
buoyancy. Many are thinning/retreating, though heavy snowfall in the
Fairweather Mountains sustains some stability.
Ice Features: Icebergs
("bergie seltzer" from trapped air), seracs, ogives, and morainal
debris. Ice visible at termini is often ~200 years old.
Climate
and Ecosystems
The climate is maritime-influenced with multiple zones
(subarctic, oceanic, etc.). Mild winters (lows ~25°F), cool summers
(highs ~60°F), high precipitation (especially orographic on mountains),
and heavy snowfall at elevation.
This supports diverse ecosystems:
temperate rainforest (Sitka spruce, western hemlock) in lower areas,
transitioning to pioneer vegetation (mosses, lichens, willows) on newer
deglaciated lands, alpine tundra higher up, and rich marine/intertidal
zones (estuaries, cold-water corals, nutrient upwelling).
Glacier Bay
exemplifies rapid ecological succession, serving as a natural laboratory
for studying how life returns after ice retreat.