Tidewater glaciers, whales, and ice-blue fjords — Alaska by water.
Photo: Diego Delso · CC BY-SA 4.0 · via Wikimedia Commons
Glacier Bay is what a glacier-carved coast looks like while it's still being made. Just 250 years ago this whole bay was buried under a sheet of ice thousands of feet thick; the glaciers have retreated more than 60 miles since, uncovering raw fjords, newborn forest, and a string of tidewater glaciers that still calve great slabs of ice into the sea with a crack the Tlingit call 'white thunder.' It's 3.3 million acres of wilderness and a UNESCO World Heritage Site — and you experience nearly all of it from the water.
This is the one park in this guide that isn't a road trip: there's no road in. Most visitors arrive on a cruise ship that spends a day gliding up the bay to the face of Margerie Glacier, with a park ranger aboard, and never set foot on land. Independent travelers fly or ferry from Juneau to the tiny town of Gustavus, base at Bartlett Cove — the park's only developed spot, with a lodge, a campground, and a coastal rainforest trail — and ride the day boat up the bay to the glaciers.
Either way the wildlife is the other half of the show: humpback whales feeding in summer, sea otters rafting in the kelp, harbor seals hauled out on the ice, Steller sea lions barking from South Marble Island, bears working the shoreline, and puffins overhead. It's a cool, wet, maritime place — summer highs only reach about 60°F — and the season is short, late May to early September. Come dressed for rain and you'll never forget it.
The showpiece — a mile-wide, 250-foot-tall active tidewater glacier where cruise ships and the day boat hold position to watch ice calve into the sea.
Insider tipThis is the main calving stop. Stay on deck, dress warm, and listen for the crack of 'white thunder' before the ice falls.
Plan a trip to this spot →For independent (non-cruise) travelers, the best way to see the glaciers — a roughly 130-mile round trip up the bay to the faces of Margerie and Grand Pacific glaciers, with a ranger aboard.
Insider tipBook ahead; it departs early from the Bartlett Cove dock and runs most of the day. It also drops off kayakers and campers.
Plan a trip to this spot →A dramatic narrow fjord ringed by peaks and fed by Johns Hopkins Glacier — one of the most spectacular corners of the bay.
Insider tipVessels are often kept out in early summer to protect harbor seals pupping on the ice floes, so entry isn't guaranteed — it's a bonus when it happens.
Plan a trip to this spot →Humpback whales feeding in summer, sea otters, harbor seals on the ice, Steller sea lions and seabird colonies at South Marble Island, shoreline bears, and bald eagles.
Insider tipSouth Marble Island, early on the day-boat tour, is the reliable spot for sea lions and nesting seabirds — have binoculars ready.
Plan a trip to this spot →An easy walk through coastal temperate rainforest from the lodge, passing the assembled skeleton of a humpback whale near the dock — the main thing to do on foot in the park.
Insider tipCombine it with the visitor center (upstairs in the lodge) and a ranger-led rainforest walk for those who go ashore.
Plan a trip to this spot →At 15,325 feet, the highest peak in Southeast Alaska, towering over the bay — but rarely seen, since clouds usually hide it.
Insider tipIf the skies clear, look west; a clear Fairweather day is a genuine rarity worth photographing.
Plan a trip to this spot →Cool, wet, and maritime. Even in the late-May-to-early-September visitor season, summer highs only reach about 60°F and rain is frequent — September and October are the wettest months. Winters are dark, cold, and snowy. Whenever you come, pack a waterproof shell, warm layers, and waterproof footwear; the bay's weather changes fast.
Glacier Bay has no road connection to the rest of Alaska's highway system — you reach the gateway town of Gustavus by small plane from Juneau or by Alaska Marine Highway ferry, and most visitors never leave the water at all.
The closest city and the main jumping-off point: small commuter planes reach Gustavus in about 15 minutes, and the Alaska Marine Highway ferry runs from Juneau to Gustavus in summer — you can even bring a vehicle up the Marine Highway to Juneau, then foot-ferry or fly over to Gustavus.
Plan a trip to Juneau, AK →The tiny town that serves as the park's gateway — home to Bartlett Cove with its lodge, dock, campground, and the trailhead for the coastal rainforest walk. The one real road in the park runs the few miles from the Gustavus airstrip to Bartlett Cove.
Plan a trip to Gustavus, AK →Leave the carThe Alaska Marine Highway terminal in Bellingham, WA or Prince Rupert, BC if you sail north through the Inside Passage; or at a Juneau parking area if you fly in. You can bring a car to Juneau on the ferry, but there's no road onward to Gustavus — the car stays in Juneau.
Book aheadThe day boat fills up; reserve your seat through the park concessioner well before your travel dates, especially July peak season. Cruise passengers book through their cruise line — no separate reservation needed.
Not boarding the boat?If you can't make the boat, the Bartlett Cove area is still worth the trip: the 2-mile Forest Loop trail through coastal rainforest, kayak rentals for the cove, wildlife (humpbacks feed in the outer bay all summer), and the small park visitor center with Tlingit cultural exhibits are all accessible on foot from the dock.
There is no road into Glacier Bay — you arrive by water or air. The only developed area is Bartlett Cove, ~10 miles from the town of Gustavus.
How most visitors 'see' the park — a day cruising up the bay to the glaciers, with rangers aboard, viewed from the deck. No landing at Bartlett Cove or Gustavus.
Fly (Juneau–Gustavus, ~30 min) or take the state ferry, then ~10 miles to Bartlett Cove for the lodge, campground, and the day boat up the bay.
Bartlett Cove has the only in-park lodging and a free campground; the town of Gustavus fills in the rest. All seasonal.
The only lodging inside the park, at Bartlett Cove — it houses the visitor center upstairs, a restaurant, and the day-boat dock right outside. Open roughly late May to early September.
Booking tipBook early; it's small and the season is short.
A free, primitive, walk-in tent campground near the lodge (free permit + a short orientation required).
Booking tipBring full rain gear and a bear-aware setup; the day boat can drop backcountry campers and kayakers up the bay.
The tiny gateway town ~10 miles away has inns, B&Bs, and fishing lodges, most offering transport to and from Bartlett Cove.
Booking tipA good small-town Alaska base if the lodge is full.
Is Glacier Bay free?
Yes — there's no entrance fee. Backcountry camping, the Bartlett Cove campground, and private-boat permits are also free (permits required). You only pay for commercial services — the lodge, the day boat, flights, and the ferry.
How do people actually visit?
Two ways: on an Alaska cruise that spends a day cruising the bay (most visitors, deck-only, no landing), or independently — fly or ferry from Juneau to Gustavus, stay near Bartlett Cove, and take the day boat up the bay.
When should I go?
Summer only — late May to early September, July being the peak. Outside that, the flights, ferries, lodge, and day boat largely shut down.
Do I need a boat tour to see the glaciers?
Yes. The tidewater glaciers are deep up the bay — you can't see them from Bartlett Cove or by road. You reach them by cruise ship or the day boat. Bartlett Cove itself offers rainforest, shoreline, the whale skeleton, and kayaking.
What wildlife will I see?
Humpback whales, sea otters, harbor seals (often on ice floes), Steller sea lions, brown and black bears along the shore, bald eagles, and puffins and other seabirds.
What should I pack?
Cold, wet maritime gear even in summer — a waterproof rain jacket and pants, fleece or warm layers, a hat, gloves, and waterproof footwear. Summer highs are only about 60°F and rain is common.
Pick your vehicle, line up the stops on the way in and out, and carry the whole route in your pocket.
