The Big Room, the largest cave chamber in North America, at Carlsbad Caverns
America's Best Idea ★ National Parks Series

Carlsbad
Caverns

Into the Underground
The largest cave chamber in North America, a nightly river of hundreds of thousands of bats, and some of the darkest skies in the country — deep in the New Mexico desert. Explored free, budget, mid-range, or in comfort. A research-based guide.
🌌
8.2 acres
The Big Room
Largest in North America
🦇
~750 ft
Natural Entrance
Hike or elevator down
🌙
Hundreds of
Thousands of Bats
A free dusk exodus
Dark Sky
Park
Milky Way over the desert
El Paso
Nearest Airport
~2.5 hrs
Why Carlsbad Caverns

A Cathedral Beneath the Desert

Stalactites and cave formations at Carlsbad Caverns

The largest cave chamber on the continent.

Beneath the Chihuahuan Desert of southeastern New Mexico opens one of the great wonders of the natural world: Carlsbad Cavern, whose Big Room is the largest single cave chamber in North America — 8.2 acres of soaring stone, towering columns, and delicate formations, reached by an elevator or a dramatic hike down through the cave's natural mouth.

And the wonder doesn't stop underground. Each evening in season, hundreds of thousands of bats spiral out of the earth at dusk, and once they're gone the desert sky fills with stars in one of the darkest places in America. It's remote, and that's exactly why it stays extraordinary.

🌌 The Big Room
North America's largest cave chamber, self-guided.
🦇 Natural Entrance
Hike 750 feet down through the cave mouth.
🌙 The Bat Flight
A free river of bats at dusk, all summer.
✨ Dark Skies
A certified Dark Sky Park over the desert.
Four Ways to Experience Carlsbad Caverns

Plan It Your Way

5 Can't-Miss Experiences

The Places That Define Carlsbad Caverns

Pairs Naturally With

More American Adventures

Just 35 minutes south lies Guadalupe Mountains National Park — the same ancient reef, now the highest peaks in Texas. And if caves are your thing, chain Carlsbad with America's other great cave park, Mammoth Cave.

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