#1 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.

#2 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.

#3 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.

#4 Photo of blue sky with fluffy white clouds reflect in calm lake with mountains in the background.

Lake Clark National Park & Preserve

AK · 30,815 visitors/yr

Room to Breathe

Two active volcanoes, 42-mile glacial lake, and bears fishing roadless salmon streams you can only reach by floatplane.

#5 Cruising Glacier Bay

Glacier Bay National Park & Preserve

AK · 736K visitors/yr

Moderate Crowds

Fifteen tidewater glaciers calve into a 65-mile fjord where humpback whales surface within camera range, reachable only by boat or plane.

#6 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.

#7 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.

#8 sun setting on sand dunes

Kobuk Valley National Park

AK · 17,233 visitors/yr

Room to Breathe

Six hundred square miles of sand dunes rise from Arctic tundra, carved by 15,000-year-old winds still pushing them across permafrost.

#9 salmon jumping at waterfall

Katmai National Park & Preserve

AK · 36,230 visitors/yr

Room to Breathe

Brooks Falls draws 2,200 brown bears to its salmon runs—North America's largest protected population concentrated in one watershed.

#10 A herd of elk crossing a river.

Olympic National Park

WA · 3.7M visitors/yr

Moderate Crowds

Olympic holds temperate rainforest, 73 miles of wild coast, and glacier-capped peaks—three ecosystems most parks never combine.