Moderate

Hoh River Trail

Iconic rainforest-to-glacier walk from mossy giants to Blue Glacier
Hoh River Trail, Olympic National Park
Distance17.5 mi
Typical time48 hr
DifficultyModerate
PetsNot allowed

Why hike it

If you want the full Olympic experience in one line, this is it: a gentle rainforest stroll that, mile by mile, morphs into a glaciated alpine world below Mount Olympus. The Hoh River Trail serves up moss-draped giants, ferny understory, and the constant rush of a glacial river—then caps it with the drama of Glacier Meadows and views toward Blue Glacier.

Route at a glance

From the Hoh Rain Forest Visitor Center, the trail follows the Hoh River up-valley for roughly 17.5 miles one way to Glacier Meadows/Blue Glacier. It’s an out-and-back. Expect minimal elevation for the first ~13 miles, then a steeper climb near the end; total gain to the Blue Glacier area is roughly 3,700 feet. The tread is well-maintained dirt with roots, mud, and occasional small creek crossings. Day hikers often turn around at Mineral Creek Falls (about 2.7 miles in; roughly 5.6 miles round trip) or Five Mile Island (about 10.6 miles round trip). Backpackers continue to Olympus Guard Station (~9 miles), Lewis Meadow, and Glacier Meadows, where a famous rope-ladder descent accesses the glacier overlook.

What you’ll see

  • Temperate rainforest: towering Sitka spruce, western hemlock, bigleaf maple, and Douglas fir smothered in moss, plus a lush fern carpet.
  • The Hoh River: glacial-fed, ever-present, and photogenic from frequent overlooks.
  • Landmarks: Mineral Creek Falls, Five Mile Island (with views of Bogachiel Peak), Olympus Guard Station, and Glacier Meadows leading to Blue Glacier.
  • Wildlife: keep an eye out for Roosevelt elk, especially away from the busy early miles.

Trail vibe and crowds

The first mile near the visitor center is busy—lots of folks are here for the short nature loops. Walk past the day-hiker hotspots and the forest quiets down dramatically. The lower miles are easy cruising; the finale near Glacier Meadows is steeper and more rugged.

Best time to hike

  • Summer: best weather and access to the high country. Longer days make the backpack more manageable.
  • Spring/Fall: fewer people and peak rainforest vibes, but expect rain and cool temps.
  • Winter: the lower trail is typically accessible with far fewer crowds; be ready for wet, muddy conditions and potential snow higher up.

Early starts help with parking and solitude. Morning light in the rainforest is gorgeous for photography.

Tips and logistics

  • Permits: no permit for day hikes. A wilderness camping permit is required for overnights, and bear canisters are required for food storage.
  • Water: abundant from the river and streams—always treat.
  • Camps: designated sites along the way, including Five Mile Island, Olympus Guard Station, Lewis Meadow, and Glacier Meadows.
  • Gear: waterproof layers and footwear you don’t mind getting muddy. Trekking poles help with slick roots and the steeper upper miles.
  • Visitor center: restrooms, water, and ranger info at the Hoh Rain Forest Visitor Center. If you’ve got extra time, pair this with the short Hall of Mosses loop for maximum rainforest immersion.

Bottom line

For day hikers, even a few miles deliver classic Hoh rainforest scenery. For backpackers, the endgame—standing above Blue Glacier after traveling from sea-level rainforest—earns this trail its bucket-list status.

Pros

  • Remarkably gentle first 13 miles make it easy to stack mileage
  • One trail delivers a true rainforest-to-glacier transformation

Cons

  • Crowded first mile near the visitor center in peak season
  • Overnight trips require permits and bear canisters

Parking

Park at the Hoh Rain Forest Visitor Center at the end of Upper Hoh Road; the trail begins from the same hub as the short nature loops.

Caution

Expect mud, slick roots, and small creek crossings. Steep terrain near Glacier Meadows includes a rope-ladder section to the Blue Glacier overlook. Treat all water and store food in bear canisters for overnights. Upper sections can hold snow outside summer.

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