Photo:
MusikAnimal / CC BY-SA 4.0
Glacier Bay is 3.3 million acres of southeastern Alaska where the ice age is still visibly at work, a 65-mile fjord lined with more than a thousand glaciers, tidewater faces calving icebergs into the sea, and temperate rainforest climbing the slopes above. A UNESCO World Heritage Site and biosphere reserve, it is one of the best places on Earth to watch a landscape rebuild itself in the wake of retreating ice.
A long, winding fjord cuts deep into the Coast Mountains, framed by peaks topping 6,000 feet and blanketed lower down by Sitka spruce and western hemlock. The environment is dynamic (ice constantly calves from glacier faces with a thunderous crack), and it supports a rich food web, from kelp forests and tide pools to humpback whales, orcas, sea otters and Steller sea lions offshore, and brown bears and mountain goats on land.
The season runs May through September, with June and July offering the most reliable weather and longest days. Summer highs sit in the mid-50s to low 60s°F, and marine wildlife is at its peak. Humpbacks return to feed and harbor-seal pups ride the ice floes. Even in high summer, expect sudden rain and fog, so plan for wet weather.
There are no roads into Glacier Bay. Most visitors fly into Gustavus, about 10 miles from the Bartlett Cove visitor center, or arrive by Alaska Marine Highway ferry. Inside the park you travel only by boat, kayak or on foot (there are no internal roads or shuttles), so exploring the bay usually means a guided day cruise, a kayak rental or a private charter.
Day boat tours run deep into the bay, with rangers narrating the calving glaciers and pointing out whales, sea lions and puffins. Sea kayaking puts you at water level beneath the ice cliffs. On land, trails range from easy walks around Bartlett Cove to backcountry routes, rangers lead guided walks and beach tours, and with the right permits you can fish for salmon and halibut or camp at Bartlett Cove or in the backcountry.
Cold water is the central risk: always wear a life jacket on boats and kayaks, dress in quick-drying layers, and treat immersion as a hypothermia emergency. Keep at least 100 yards from bears and 25 yards from otters, seals and whales, and never approach a calving glacier face. Weather shifts fast from sun to storm, so check conditions often and avoid hiking alone in remote areas. Cell service is essentially nonexistent, so carry charts, a compass or GPS, and leave your itinerary with someone.
Book lodging and tours in Gustavus or Hoonah well ahead, especially in summer, and secure any backcountry camping or route permits through the National Park Service. There is no entrance fee, but there are also no paved roads or commercial conveniences inside the park, so come self-reliant. This page is a general overview, not a live conditions report; always confirm current conditions, closures and permits with the National Park Service before your trip.
Set this declination on your compass, then align it to the map's north lines; it is the angle between true north and magnetic north, refreshed each year.
