Glacier Bay
Where glaciers meet the sea — one of the last great wilderness experiences on Earth.
Glacier Bay National Park and Preserve is one of the crown jewels of the Alaska cruise experience — a UNESCO World Heritage Site and International Biosphere Reserve encompassing more than five million acres of tidewater glaciers, fjords, and wilderness that was almost entirely buried under ice just 250 years ago. The bay's rapid deglaciation since the late 1700s has created one of the world's most dramatic living laboratories of ecological succession, where bare rock left by retreating glaciers is slowly being reclaimed by forest. Cruise ships are among the only vessels permitted to enter the park, making this a destination accessible almost exclusively to cruise passengers.
Tidewater Glaciers & the Art of Calving
Glacier Bay is home to more than 1,000 glaciers, including roughly a dozen active tidewater glaciers that flow directly into the sea. The most dramatic moments come when massive chunks of ice — some the size of apartment buildings — break free from a glacier face and thunder into the water in a phenomenon called calving. The sound alone is extraordinary: a deep crack followed by a roar that echoes across the fjord. Johns Hopkins Glacier, one of the few in Alaska that is still advancing, is a particular highlight, and the park's ranger-narrated cruise through the upper bay brings passengers within a quarter mile of these ancient rivers of ice.
Wildlife of the Last Wilderness
Glacier Bay's remote waters and shorelines support an extraordinary concentration of wildlife. Humpback whales feed in the nutrient-rich bay throughout the summer, and sightings from the ship's deck are nearly guaranteed — breaching, tail-slapping, and bubble-net feeding are all common. Harbor seals haul out on icebergs calved from the glaciers, while brown and black bears patrol the shoreline, mountain goats pick their way across cliff faces, and bald eagles perch in the spruce and hemlock forests of the lower bay. Orcas, Steller sea lions, and Dall's porpoises are also regularly spotted. The park's wildlife density is among the highest of any Alaska destination.
What Makes Glacier Bay Special
Glacier Bay FAQ
No — only a limited number of cruise ships are permitted to enter Glacier Bay each day under National Park Service regulations. Itineraries that include Glacier Bay are specifically designated as such. If Glacier Bay is a priority, confirm it is on the itinerary before booking rather than assuming it is included in any Alaska cruise.
Most cruise itineraries experience Glacier Bay as a scenic cruising day rather than a port stop — the ship navigates through the bay while passengers watch from the decks. Some small-ship and expedition cruise lines do offer kayaking and zodiac excursions into the park, but these are the exception rather than the rule.
The upper open decks offer the widest views and are ideal for wildlife spotting and photography. The bow area is particularly popular when approaching glacier faces. Bring layers — temperatures near the glaciers can be significantly colder than elsewhere on the itinerary, and wind chill on open decks adds to that effect.
June through August is the primary season, with the longest daylight hours and the best conditions for wildlife viewing. June tends to have the clearest skies; July and August bring peak humpback whale activity. The park is closed to cruise ships outside the summer season.
Glacier Bay is a fundamentally different experience from Alaska's port towns — it is a wilderness day rather than a shore excursion day. For travelers who prioritize natural scenery and wildlife over history and shopping, it is often the highlight of the entire Alaska cruise. Many guests who have done both say Glacier Bay is irreplaceable.
Ready to Visit Glacier Bay?
Let our advisors build the perfect itinerary — flights, hotels, excursions, and every detail handled for you.
Plan My Trip