For a few months each year, the town fills and empties with the ships, more people than the small downtown was built for. Most come for the scenery and the wildlife, and many want the same thing: a whale-watch run out of Auke Bay, where the humpbacks feed all summer.

Juneau counted 1,733,016 large-ship cruise passengers in 2026, up from 1,688,738 the year before and about 1.64 million in 2023. Across Alaska, cruise traffic has held closer to flat, near 1.8 million passengers in each of the last two summers.

For a capital of about 32,000 people, that is heavy company, roughly 54 visitors for every year-round resident. The city and the cruise lines limit traffic by agreement, a voluntary ceiling of five large ships a day and, new in 2026, a cap of about 16,000 passengers a day on most days. A city task force is reviewing the pressures of a big season, among them downtown congestion, helicopter flightseeing, whale-watching traffic and a planned data-collection effort.

Out of Auke Bay

The whale-watch boats run from Don D. Statter Harbor, about 12 miles north of the downtown berths, and head out into a wide channel with mountains coming straight down to the water. The afternoon trips fill with passengers off the ships in port, among them Holland America’s Koningsdam, which offers whale-watching among its shore excursions. The line has announced that 2027 will be its 80th season in Alaska.

A short way out, a navigation buoy below a small lighthouse is usually crowded with Steller sea lions, the largest of their kind, whose bulls can weigh more than half a ton. They rest there between foraging runs. Bald eagles watch from the spruce along the shore, and nearby Admiralty Island holds one of the densest nesting populations of them known anywhere. Orcas and porpoises turn up less predictably.

The humpbacks spend the winter off Hawaii, where they fast, then travel north each spring, roughly 3,000 miles, to feed on the herring and krill that fill these channels from April into November. During those months, they do most of a year’s eating, fattening for the return south. Calves make the first crossing with their mothers, and the adults can live 80 years or more. Hunted heavily across the North Pacific before commercial whaling ended in the 1960s, the species has climbed back over the decades.

In Southeast Alaska, the whales sometimes bubble-net feed, a cooperative method that only some of them use and that seems to be learned. A group dives together and blows a ring of bubbles to corral a school of fish, then lunges up open-mouthed through the middle. Not every trip sees it, though some sightings are common.

The spouts usually give the whales away first: a puff of mist over the channel, then a long dark back rolling under, and now and then a tail thrown clear before a dive. Humpbacks surface to breathe every few minutes, and on a calm day a blow carries far. A 100-yard minimum distance from humpbacks has been the rule in Alaska since 2001, and Whale SENSE, a voluntary program for operators in the region, began in Juneau in 2015 with four companies.

Some of the humpbacks are known individually. Researchers log them by the markings under the fluke in the Southeast Alaska Humpback Whale Catalog, among them Flame, No. 1538, a female first recorded with a calf in 2013. A bronze cast of her tail stands in Auke Bay.

See them next season

Whale-watching runs from spring into fall, with the best viewing from June through August, and most tours last three to four hours, with several departures a day at peak season. Some board right at the cruise pier instead of the Auke Bay harbor, and operators commonly advertise a sighting guarantee that refunds the fare on the rare empty trip. The Mendenhall Glacier sits at the head of the valley behind the bay, and many pair a glacier stop with a whale trip. Juneau has no road to the rest of Alaska, so every visitor arrives by ship or by plane.

The limit still unwritten

Juneau heads into 2027 with the five-ship cap still a voluntary agreement. The assembly weighed writing it into law this year but postponed the vote, and bookings for the 2027 season are already open.

Mandy is a luxury travel, fine dining and bucket-list-adventure journalist with expert insight from 47 countries. She uncovers unforgettable experiences around the world and brings them to life through immersive storytelling that blends indulgence, culture and discovery, and shares them with a global audience as co-founder of Food Drink Life. Her articles appear on MSN and through the Associated Press wire in major U.S. outlets, including NBC, the Daily News, Boston Herald, the Chicago Sun-Times and many more.