45 miles from Juneau, Alaska hides glaciers, seals, and a fjord you can only reach by boat

It’s wilder than Glacier Bay and twice as remote

You’ve probably heard of Glacier Bay. But 45 miles south of Juneau, tucked inside the Tongass National Forest, sits a wilderness that most people drive right past on a cruise ship itinerary without knowing what they’re missing.

Tracy Arm-Fords Terror covers 653,179 acres of glaciers, fjords, rainforest, and raw mountain. About one-fifth of the whole thing sits under permanent ice.

The only way in is by boat or floatplane, and that’s the first clue you’re somewhere serious.

Two fjords named for a sailor’s worst day

Tracy Arm got its name in 1889 when a Navy commander named Henry Mansfield named it after Benjamin Franklin Tracy, Secretary of the Navy under President Benjamin Harrison.

Endicott Arm honors William Endicott, Secretary of War under President Grover Cleveland. But the most memorable name in the wilderness belongs to neither of them.

Fords Terror takes its name from a Navy crewman named Ford who paddled into a narrow side inlet in 1889 and spent six hours trapped by tidal surges he couldn’t fight.

John Muir explored these same fjords in 1879 and 1880 and compared them to Yosemite.

Three glaciers flow from the same ancient icefield

Every glacier in this wilderness, Dawes, North Sawyer, and South Sawyer, flows from the Stikine Icefield, which straddles the Alaska-Canada border high in the Coast Mountains.

Peaks along that range climb between roughly 4,900 and 12,000 feet, pulling moisture off the Gulf of Alaska and dropping it as snow at elevation. That snow builds up over centuries and becomes ice.

Since 2000, the Stikine Icefield has been losing mass at an average rate of about 3.3 gigatons per year.

Dawes Glacier roars like white thunder

At the head of Endicott Arm, Dawes Glacier stands more than 600 feet tall and stretches about half a mile wide.

It flows directly into the ocean, which makes it a tidewater glacier, one of the most dynamic things you can watch in nature. John Muir named it the Young Glacier in 1879 after his companion Reverend S. Hall Young.

The U.S. Coast and Geodetic Survey later renamed it for Massachusetts statesman Henry L. Dawes.

When a large chunk of ice breaks off and crashes into the water, people on passing vessels describe the sound as white thunder.

The fjord fills with blue icebergs the size of buildings

By summer, both fjords carry floating ice ranging from pieces you could hold in your hands to chunks as tall as a three-story building. The water shifts from gray to jade green as you move deeper into the fjord.

The blue in the icebergs comes from centuries of compressed snow.

Captains carefully weave tour vessels through ice fields, sometimes stopping so passengers can photograph a particularly striking formation.

The water at the end of the fjord runs nearly 600 feet deep, which is why calved ice stays mostly intact for so long.

Harbor seals pick the ice to raise their pups

The icebergs in both fjords serve a purpose beyond the scenery.

Harbor seals use them as resting platforms and nurseries, and Endicott Arm is an important breeding area during spring. The floating ice disrupts orca sonar, so it gives seal pups a safer place to enter the world.

Forest Service rangers have counted hundreds of seals in front of the glaciers during peak season.

Vessel operators follow wildlife watching guidelines from NOAA Fisheries, so you’ll get close views without crowding the animals.

Humpbacks, bears and mountain goats share the coastline

Humpback whales migrate through these waters from May through September and sometimes breach near the fjord entrances. Brown and black bears forage along the shorelines, especially near stream mouths.

Mountain goats have been spotted clinging to the high cliffs near glacier bases. Bald eagles nest along the coastline and soar overhead regularly.

The wilderness also supports wolves, Sitka black-tailed deer, Steller sea lions, and seabirds including Arctic terns and pigeon guillemots.

Fords Terror only opens at slack tide

That crewman named Ford had no way to know the entrance to his inlet would carry his name forever, but if you ever try to enter Fords Terror, you’ll understand why the name stuck.

Tidal currents at the entrance reach extreme speeds, with standing waves several feet high at the wrong moment. Time your entry to slack tide, and everything changes.

Inside, vertical rock walls climb nearly a thousand feet straight from the water, draped in waterfalls. There’s no cell service, no radio signal, and no other sound.

Small expedition vessels and kayakers who get the timing right find a place that feels completely untouched.

A rare deep-sea coral grows just 20 feet down

Tracy Arm holds something researchers didn’t expect. Primnoa pacifica is a deep-water coral that normally grows 490 to 3,000 feet below the surface.

In Tracy Arm, it grows at depths of just 20 to 100 feet, a combination of cold temperatures, nutrient-rich upwelling, and strong currents that makes this one of the only places in the world where this happens.

That discovery contributed to the area being designated a Habitat Area of Particular Concern. The deep passageways and thin continental shelf create unusual connections between offshore and nearshore waters.

A rainforest grows right up to the edge of the ice

Below the glaciers and the bare rock, the lower slopes of the wilderness are thick with Sitka spruce and western hemlock. The temperate rainforest climbs to about 1,500 feet before the trees give way to rock and ice.

The eastern boundary of the wilderness runs along the ridgeline that marks the U.S.-Canada border. The southwestern boundary connects to the Chuck River Wilderness, another protected stretch of the Tongass.

You can kayak along the coastline, and a few primitive campsites exist, but strict bear-country safety rules apply.

A 2025 megaslide sent a wave up 1,500 feet

On Aug. 10, 2025, at about 5:30 a.m., a massive landslide near South Sawyer Glacier sent roughly 100 million cubic meters of rock and debris into Tracy Arm.

The slide generated a tsunami with run-up that reached over 1,500 feet on the opposite fjord wall. No fatalities were reported, and no one was injured.

Three kayakers camped on nearby Harbor Island had their gear swept away but got out safely. The U.S. Geological Survey has flagged the area as still hazardous, with continued rockfall expected.

In response, multiple major cruise lines rerouted their 2026 sailings away from Tracy Arm.

Endicott Arm is now where the action is in 2026

With Tracy Arm closed to large vessels, Endicott Arm and Dawes Glacier have stepped into the spotlight for cruise passengers.

Endicott Arm runs slightly wider than Tracy Arm, which allows for safer navigation while still giving you towering granite cliffs, dozens of waterfalls, floating icebergs, and close-up views of calving ice.

Small expedition vessels out of Juneau can travel deeper into the fjord than cruise ships, which means a more immediate experience with the glacier.

Some smaller charter operators still access Tracy Arm when conditions allow.

Visit Tracy Arm-Fords Terror Wilderness in Alaska

You can reach the wilderness by booking a day-trip excursion boat, small expedition vessel, kayak drop-off tour, or floatplane out of Juneau, about 45 miles north.

In 2026, most cruise itineraries route through Endicott Arm to Dawes Glacier rather than Tracy Arm. Dress in warm layers with waterproof outerwear, and bring binoculars and a camera with a good zoom.

There are no roads, no facilities, and no cell service inside the wilderness.

Check the official website of the Tongass National Forest for current access conditions and permitted operators before you go.

This article was created with AI assistance and human editing.

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