#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 View from forest floor looking straight up. Ferns as seen close up and redwood trunks meet.

Redwood National and State Parks

CA · 623K visitors/yr

Comfortable

The world's tallest trees stand in groves you can walk through on level trails, three hours north of San Francisco with a third the crowds.

#5 Steep, rugged ocean cliffs extending in an island chain.

Channel Islands National Park

CA · 263K visitors/yr

Comfortable

California's Galápagos lies 12 miles offshore with 145 endemic species. Sea lions, island foxes, and rare seabirds inhabit five islands.

#6 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.

#7 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.

#8 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.

#9 A purple and pink streaked sky over a mountain peak and forested valley.

Mount Rainier National Park

WA · 1.6M visitors/yr

Moderate Crowds

An active volcano cloaked in more glaciers than any Lower 48 peak, Mount Rainier spawns five major rivers from ice beginning at 14,410 feet.

#10 A red rock landscape and plateau forest glows with the morning sun

Bryce Canyon National Park

UT · 2.5M visitors/yr

Very Crowded

Earth's densest hoodoo forest where the Navajo Loop drops you between orange spires so narrow you'll touch both walls at 8,000 feet.