#1 A triangular sandstone mountain overlooks green and yellow foliage. A cloudy blue sky is overhead.

Zion National Park

UT · 4.9M visitors/yr

Very Crowded

Red cliffs rise 2,000 feet above the Virgin River, where Angels Landing's chain climb and The Narrows' slot canyon wade draw crowds.

#2 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.

#3 Blooming Cenizo

Big Bend National Park

TX · 561K visitors/yr

Comfortable

Big Bend protects 1,200 square miles where the Chisos Mountains rise from desert. Over 450 bird species recorded—more than any park.

#4 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.

#5 The canyon glows orange as people visit Mather Point, a rock outcropping that juts into Grand Canyon

Grand Canyon National Park

AZ · 4.9M visitors/yr

Moderate Crowds

The Colorado River carved through two billion years of rock to create a chasm one mile deep and 277 miles long at the South Rim.

#6 badlands bathed in pale pink and orange light from the setting sun

Death Valley National Park

CA, NV · 1.4M visitors/yr

Moderate Crowds

Death Valley's salt flats, singing dunes, and moving rocks reward October-to-April visitors with cooler temps and wildflower blooms.

#7 '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.

#8 The sky turns hues of pink and purple over a field of Joshua trees.

Joshua Tree National Park

CA · 3.0M visitors/yr

Moderate Crowds

Two desert ecosystems meet where the Mojave's yuccas give way to the Colorado's slopes and granite formations split by ancient forces.

#9 El Capitan with blooming claret cup cacti

Guadalupe Mountains National Park

TX · 226K visitors/yr

Comfortable

Texas's highest peaks rise from a 265-million-year-old fossil reef in the Chihuahuan Desert, holding more species than any Texas park.

#10 Two tall waterfalls flowing down snow covered granite walls.

Yosemite National Park

CA · 4.1M visitors/yr

Comfortable

Granite cliffs rise 3,000 feet, seasonal waterfalls drop half a mile, and giant sequoias reach into the Sierra sky in this iconic valley.