#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 Coral reef with two snorkelers diving below the surface

Biscayne National Park

FL · 512K visitors/yr

Busy

Miami's skyline floats on the horizon while you snorkel over the continental United States' only living coral reef system.

#3 A deep canyon with a forested floor and steep granite cliffs

Sequoia & Kings Canyon National Parks

CA · 2.0M visitors/yr

Comfortable

The giant sequoias here include General Sherman, the largest tree on Earth by volume, anchoring a forest where trunks exceed 30 feet wide.

#4 View of the Congaree River during the Fall

Congaree National Park

SC · 242K visitors/yr

Moderate Crowds

The largest old-growth bottomland hardwood forest in the Southeast protects champion trees you'll reach via elevated boardwalk.

#5 A few of the stars at night with a view of Fort Jefferson.

Dry Tortugas National Park

FL · 84,873 visitors/yr

Busy

Seven coral islands 70 miles west of Key West, anchored by Fort Jefferson—a massive 19th-century fort that was never finished or fired upon.

#6 A sunset creates a silhouette of a cypress tree with needle-like leaves that is shaped like an 'N'.

Everglades National Park

FL · 742K visitors/yr

Comfortable

America's largest subtropical wilderness—a slow-moving river creating sawgrass marshes, mangrove islands, and alligator habitat.

#7 sun rising over the New River Gorge

New River Gorge National Park & Preserve

WV · 1.8M visitors/yr

Busy

The East Coast's deepest river gorge cuts 1,000 feet through ancient rock, with Class V rapids and 100 miles of trails above.

#8 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.

#9 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.

#10 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.