#1 Rocky coastline with palm trees and a cliff beyon

Hawaiʻi Volcanoes National Park

HI · 1.4M visitors/yr

Moderate Crowds

Two active volcanoes shape terrain from tide pools to alpine desert. Walk across recent lava flows and through rainforests on ancient rock.

#2 'Ahinahina blooms in Haleakala crater

Haleakalā National Park

HI · 732K visitors/yr

Very Crowded

A dormant volcano where you stand above the clouds at 10,000 feet, then descend through alpine desert to rainforest in a single morning.

#3 Large mountains dotted with snow loom above a rocky meadow filled with yellow flowers.

Glacier National Park

MT · 3.2M visitors/yr

Comfortable

Twenty-six glaciers remain from the 150 that once filled these valleys. Going-to-the-Sun Road climbs past Logan Pass to the evidence.

#4 A view of Crater Lake and Wizard Island

Crater Lake National Park

OR · 505K visitors/yr

Comfortable

America's deepest lake fills a volcanic caldera with water so pure scientists use it as a baseline. The 33-mile Rim Road circles the crater.

#5 boats on the water with mountains and trees surrounding

North Cascades National Park

WA · 16,485 visitors/yr

Room to Breathe

Three hundred glaciers carve through jagged peaks three hours north of Seattle, the most glaciated terrain in the Lower 48.

#6 Brilliant blues and greens of a hot spring ringed by oranges, yellows, reds, and browns.

Yellowstone National Park

ID, MT, WY · 4.7M visitors/yr

Comfortable

The world's first national park sits on a supervolcano where half of Earth's geysers erupt on schedule and bison herds cross roads freely.

#7 a white colored sheep standing on a mountainside overlooking a green valley

Denali National Park & Preserve

AK · 466K visitors/yr

Comfortable

North America's tallest peak anchors six million acres where one road separates you from wilderness and grizzlies outnumber summit-spotters.

#8 A brilliant sunset filled with hues of blue, red, orange, magenta, and purple highlight the sky.

Acadia National Park

ME · 4.0M visitors/yr

Very Crowded

Rocky Atlantic coast crowned by Cadillac Mountain, first sunrise in the US. Granite peaks meet the ocean through 158 miles of trails.

#9 Backpackers in North Fork Cascade Canyon, Grand Teton behind

Grand Teton National Park

WY · 3.6M visitors/yr

Busy

The Tetons rise 7,000 feet without foothills—granite and glaciers visible from every corner of Jackson Hole. Thirteen peaks top 12,000 feet.

#10 A frozen lake below snow-covered trees and peak

Lassen Volcanic National Park

CA · 358K visitors/yr

Comfortable

Lassen Peak's 1914-1917 eruptions left a volcanic laboratory where boiling mudpots and sulfurous vents still reshape the ground.