Alaska Inside Passage Cruise Guide: Glaciers, Wildlife, and Stunning Ports

# Alaska Inside Passage Cruise Guide: Glaciers, Wildlife, and Stunning Ports

The Alaska Inside Passage is one of the world's great cruise routes — a sheltered waterway threading between the mainland and a chain of islands along the southeastern Alaskan coast. For roughly 1,500 kilometres, ships glide past ancient rainforests, calving glaciers, snow-capped peaks, and some of the richest wildlife habitat on the planet. If you have ever dreamed of watching a humpback whale breach against a backdrop of blue ice, this is the voyage for you.

What Makes the Inside Passage Special

Unlike open-ocean cruising, the Inside Passage offers protected waters for most of the journey, meaning calmer seas and more comfortable sailing even for those prone to seasickness. The scenery is relentlessly spectacular — there is no dead zone of featureless ocean to endure between highlights.

The combination of natural wonders and fascinating port towns makes Alaska cruising uniquely satisfying. You can spend a morning watching glaciers calve enormous chunks of ice into the sea, an afternoon kayaking through a wilderness fjord, and an evening exploring a historic gold rush town — all on the same day.

Check live weather on our [city dashboard](/) before your departure to understand what conditions to expect along the route.

Key Ports of Call

Juneau: Alaska's Accessible Capital

Juneau is one of the most unusual state capitals in the United States — accessible only by sea or air, with no road connection to the rest of Alaska. This isolation has preserved the town's frontier character while making it a natural cruise hub.

The must-do experience in Juneau is visiting Mendenhall Glacier, a 19-kilometre-long river of ice that flows down from the Juneau Icefield to within a short drive of downtown. The visitor centre offers excellent interpretive displays, and several trails allow you to get close to the glacier face — close enough to hear the groaning and cracking of the ice.

Other Juneau highlights include:

Skagway: Gateway to the Klondike

Skagway is a town frozen in time — or rather, preserved in the era of the 1898 Klondike Gold Rush. The entire downtown is a National Historic Park, with wooden boardwalks, false-fronted buildings, and costumed interpreters bringing the gold rush era to life.

The White Pass and Yukon Route Railway is the highlight of any Skagway visit. This narrow-gauge railway climbs from sea level to the White Pass summit (873 metres) in just 32 kilometres, following the route that thousands of prospectors took during the gold rush. The views from the train are extraordinary — sheer cliff faces, deep gorges, and cascading waterfalls.

For the more adventurous, hiking the Chilkoot Trail — the original gold rush route — is a multi-day backcountry experience that follows the footsteps of the stampeders through some of Alaska's most dramatic scenery.

Ketchikan: Salmon Capital and Totem Poles

Ketchikan sits on a narrow strip of land between the mountains and the sea, its colourful buildings climbing the hillside above the waterfront. The town receives more rainfall than almost anywhere else in Alaska, which feeds the lush temperate rainforest that surrounds it.

Ketchikan is famous for its totem poles — the largest collection of standing totem poles in the world can be found at Totem Bight State Historical Park and Saxman Native Village. These magnificent carved poles tell the stories of the Tlingit, Haida, and Tsimshian peoples who have called this region home for thousands of years.

The town is also the self-proclaimed Salmon Capital of the World. Creek Street, a historic boardwalk built over Ketchikan Creek, was once the town's red-light district and is now lined with shops and galleries. During salmon runs, you can watch fish leaping upstream directly below your feet.

Sitka: Russian Heritage and Wildlife

Sitka stands apart from other Inside Passage ports with its fascinating Russian heritage. The town was the capital of Russian America before the United States purchased Alaska in 1867, and Russian influence is still visible in the distinctive onion dome of St. Michael's Cathedral and the Russian Bishop's House.

Sitka National Historical Park preserves the site of the 1804 battle between Russian forces and the Tlingit people, with a collection of totem poles set along a forest trail beside the sea.

Sitka is also an excellent base for wildlife viewing. Sea otters float in the harbour, bald eagles perch on every available vantage point, and the surrounding waters are rich with marine life.

Glacier Bay National Park

For many passengers, a day in Glacier Bay National Park is the emotional centrepiece of the entire cruise. The park protects one of the world's most impressive concentrations of tidewater glaciers — rivers of ice that flow directly into the sea.

Ships navigate slowly through the bay while a National Park Service ranger provides commentary on the glaciers, wildlife, and the remarkable story of how this landscape has changed since the Little Ice Age. Just 250 years ago, the entire bay was buried under a massive glacier. Today, it is a dynamic wilderness of open water, newly exposed land, and retreating ice.

The Grand Pacific Glacier and Margerie Glacier are the most visited, and watching a massive chunk of ice calve from the glacier face — a process called calving — is one of the most dramatic natural spectacles you will ever witness.

Use our [currency converter](/currency) to budget for shore excursions, which can add significantly to the cost of an Alaska cruise.

Wildlife Watching on the Inside Passage

Alaska's Inside Passage is one of the richest wildlife habitats in North America. Keep your binoculars handy for:

Practical Tips for Alaska Cruising

Best Time to Cruise

The Alaska cruise season runs from May through September. June and July offer the longest daylight hours (up to 18 hours of daylight in midsummer) and the warmest temperatures. May and September are shoulder months with fewer crowds and lower prices, though weather can be more unpredictable.

What to Pack

Alaska weather is famously changeable. Pack layers including:

Shore Excursion Planning

Shore excursions in Alaska can be expensive, but many of the best experiences — walking the historic streets of Skagway, exploring Ketchikan's totem poles, or simply watching wildlife from the ship — cost nothing extra. Budget carefully and prioritise the experiences that matter most to you.

Browse more articles on our [blog](/blog) for detailed guides to Alaska cruise planning, packing lists, and tips for getting the most from each port of call.