Alaska’s Inside Passage Region: A Journey Through Glaciers, Whale Corridors and Frontier Towns
Alaska’s Inside Passage is a majestic, sheltered network of channels, fjords and forested islands running along the southeastern edge of Alaska, from the northern reaches of Washington state to Skagway.
It is famous as one of the calmest and most scenic coastal routes in the world. A chain of islands shields it from the open Pacific, keeping its waters still even in poor weather. Guests travelling this stretch of the Inside Passage move through pristine tidewater glaciers, whale-rich straits and fascinating frontier towns first built by prospectors, traders and fishing crews. Aboard EXPLORA III, the passage becomes an enchanting experience, not just a bucket-list checklist, revealing Alaska’s glaciers, wildlife and communities in the order the landscape intended. Ashore, soul-stirring Destination Experiences carry Guests further in – onto salmon streams where bears fish at low tide, or trails that climb past the treeline – proof the coastline is only half the story.
Entering the Passage: Where Mountains Meet the Sea
South of Ketchikan, the passage narrows between forested islands and granite peaks that rise straight from the water. Channels twist for more than 1,000 kilometres between Puget Sound and Skagway, sheltered enough that even large ships glide through with barely a ripple. Sitka spruce and hemlock crowd the shoreline. Waterfalls loosen down cliff faces after rain. There is a hush to these opening miles, the sense of a landscape that has not yet finished revealing itself.
Rivers of Ice: The Glaciers That Shape Alaska
Alaska glaciers reach some of their most dramatic expression in the southeast, where ancient icefields feed tidewater glaciers that spill down mountain valleys and calve directly into the sea. Blocks the size of houses crash into the water with a crack that carries for miles. Glacier Bay National Park protects one of the greatest concentrations of these formations, while Hubbard Glacier, Alaska’s largest tidewater glacier, offers scale on an entirely different register, a wall of blue-white ice more than 10 kilometres wide. Guests can book Alaska experiences ashore to walk closer to these frozen rivers, turning a distant view into something felt underfoot.
Along the Humpback Highway
Southeast Alaska’s protected waters double as a feeding corridor for humpback whales, which arrive each summer to gorge on herring and krill before their long migration south. Whale watching in Alaska is at its best between May and September, when spouts punctuate the surface. Occasionally, a whale breaches clear of the water against a backdrop of glacier and granite. Sea lions haul out on rocky islets, porpoises cut through the wake, and bald eagles watch from the spruce tops. This kind of Alaska wildlife viewing rewards patience more than long lenses.
Ketchikan: Alaska’s First Frontier Town
Ketchikan greets arriving Guests with a waterfront built on stilts above the tideline, its wooden boardwalks recalling a fishing and cannery past. The region’s Tlingit, Haida and Tsimshian communities carved the totem poles that give the town one of the world’s largest standing collections and their heritage still shapes local life. Rainforest presses close behind the storefronts. A black bear and wildlife exploration outing leads into that forest on quiet trails where black bears fish in the salmon streams each autumn.
Sitka: Where Cultures and Oceans Converge
Facing the open Pacific rather than a sheltered channel, Sitka carries a different rhythm. Russian colonial history sits alongside Tlingit tradition in its onion-domed cathedral and totem-lined park, while its outer islands support some of the richest coastlines in the passage. Fishing boats still define the harbour. Sitka’s community of carvers and painters treats the sea as both subject and studio.
Juneau: Between Icefields and Wilderness
Alaska’s capital has no road connection to the rest of the state, reachable only by sea or air, a fact that shapes its character. Mendenhall Glacier sits within reach of the harbour, its ice face retreating slowly into the lake it carved. Behind the compact downtown, mountains climb straight into wilderness, offering access to alpine trails and float plane routes over icefields that few visitors ever see from the ground.
The passage does not announce itself. It simply keeps unfolding.”
Skagway and the Spirit of the Gold Rush
Skagway preserves its Gold Rush character with unusual clarity, its false-fronted buildings and boardwalks little changed since prospectors surged through in 1897 bound for the Klondike. The White Pass and Yukon Route Railroad Summit climbs the same route those stampeders once walked, switching back through granite gorges to reveal the passage laid out far below. Skagway is compact enough to explore on foot, yet it carries the scale of a much larger story.
The Landscape Beyond the Shore
Between towns, the passage settles into its true character: temperate rainforest running down to the waterline, waterfalls loosened by rain, eagles riding thermals above the channels. Bears fish the estuaries at low tide. Remote islands slip past with no dock, no town, sometimes no visible trace of anyone at all. Sailing this closely to a wilderness so intact is why Explora Journeys treats its sustainable travel initiatives as inseparable from the Journey, not an afterthought to it.
Why Alaska Is Best Experienced by Sea
Roads reach only a handful of Southeast Alaska’s communities, and much of the coastline has none at all. Arriving by water gives access to glaciers, coves and wildlife corridors unreachable any other way, while the scenery itself changes continuously, mountain to fjord to open channel, in a way no land route ever could. It is an intimate way to meet a vast landscape, one glacier or whale spout at a time. Guests planning a Alaska luxury cruise can explore how Explora Journeys frames its Journeys along this coastline in its own right.
Alaska Journeys Onboard EXPLORA III
Explora Journeys will bring Alaska into its collection for the first time in Summer 2027/28, with EXPLORA III as a new chapter in the brand’s exploration of the world’s coastlines. The Summer collection marks the beginning of Alaska’s place within Explora Journeys’ wider story, an invitation to discover glaciers, whales and frontier towns from a Home at Sea built for exactly this kind of slow, immersive travel.
Destination Experiences
From glacier walks to bear-watching trails, Alaska’s Destination Experiences bring the Inside Passage closer.
Alaska, Land of Whales, Glaciers, and Rainforest Trails
Be on the lookout for orcas, humpback whales, porpoises and seals from your safari vessel.
Alaska Bear Adventure by Floatplane
Lift off from Ketchikan town by floatplane on a 20-minute journey and glide above the vast and verdant Tongass National Forest.
Kenai Fjords National Park Cruise
Kenai Fjords National Park, at the edge of the North Pacific Ocean, is a captivating landscape of glaciers, dramatic coastal fjords, and forest.
Alaskan Glacier Discoveries
Glaciers form when snow turns to dense ice and gets dragged down by gravity, dramatically carving out the landscape.
Journeys to Alaska
Alaska’s Inside Passage is a protected coastal route through Southeast Alaska, threading between forested islands, fjords and channels from northern Washington state to Skagway. Sheltered waters make it one of the calmest ways to travel through glacier country, wildlife corridors and historic frontier towns.
Humpback whales, sea lions, porpoises and bald eagles are common sights along the route, particularly in the channels near Ketchikan and Sitka. Black bears and brown bears fish salmon streams in the rainforest beyond the shoreline, especially in late summer and autumn.
The main season runs from May to September, when wildlife is most active and daylight hours are long. Humpback whale sightings peak between June and August, while glacier viewing conditions remain strong throughout the season.
Ketchikan, Sitka, Juneau and Skagway are the principal frontier towns along the Inside Passage, each with its own history and landscape, from totem traditions to Gold Rush architecture.
