#1 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.

#2 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.

#3 Saguaro flowers

Saguaro National Park

AZ · 946K visitors/yr

Very Crowded

Giant saguaros, some 200 years old and 40 feet tall, frame both sides of Tucson in the densest stands of these iconic cacti anywhere.

#4 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.

#5 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.

#6 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.

#7 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.

#8 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.

#9 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.

#10 '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.

Frequently Asked Questions

Which national parks stay warm in winter?
Death Valley and the Sonoran Desert parks—Saguaro and Joshua Tree—offer daytime temps in the 60s and 70s. Everglades and Biscayne in South Florida stay even warmer, with highs near 80.
Can you camp in national parks during winter?
Most campgrounds in these warm-weather parks stay open year-round. Death Valley, Saguaro, and Joshua Tree operate first-come sites even in December, while Everglades books up months ahead for the dry season.
Are winter crowds lighter at desert parks?
Desert parks flip the season—winter is peak time. Death Valley and Joshua Tree see their heaviest crowds December through March when temperatures drop below summer's dangerous highs. Spring break compounds the issue.
What winter activities work best in warm parks?
Desert hiking peaks in winter when trails that bake in summer become walkable. Everglades paddling improves with lower water levels concentrating wildlife. Biscayne's reefs stay diveable, though water temps drop to the low 70s.