Carlsbad Caverns National Park

Carlsbad Caverns National Park protects one of the most spectacular and famous cave systems in the world — a vast underground labyrinth of more than 100 caves dissolved out of an ancient limestone reef beneath the Chihuahuan Desert of southeastern New Mexico. The showpiece is the Big Room, a single chamber so enormous it ranks among the largest cave chambers in North America, hung with a fantastical array of stalactites, stalagmites, columns, draperies and delicate formations.

Visitors descend either by the steep natural entrance trail or by elevator to explore the Big Room and other chambers, while adventurous cavers tour wilder, undeveloped passages. Each summer evening, hundreds of thousands of Brazilian free-tailed bats spiral out of the natural entrance in a famous bat flight. A UNESCO World Heritage Site of astonishing scale and beauty, Carlsbad Caverns is a treasured natural icon of New Mexico and the American Southwest.

The signature experience is exploring the caverns — walking the paved trail through the Big Room, descending the steep switchbacks of the Natural Entrance, or taking the elevator down 750 feet, with ranger-guided tours into wilder chambers like the King’s Palace and the off-trail Slaughter Canyon Cave and Spider Cave for adventurous cavers. Above ground, the park offers desert hiking trails, scenic drives and the famous evening bat-flight programs. Touring the Big Room and watching the bat flight are the essential draws of this underground wonder.

The caverns stay a cool, constant temperature year-round, so they are wonderful in any season — but the famous bat flights occur only from spring through October, when the Brazilian free-tailed bats are present (peaking in late summer when the pups join the flight). Summer above ground is very hot in the Chihuahuan Desert; spring and fall are milder for the surface trails. Reservations/timed-entry may apply. Year-round for the cave; spring through fall for the bat flight is the highlight — come for an evening bat program and a daytime tour of the Big Room.

The caves were known to Native peoples for millennia, and entered American awareness through local cowboy Jim White, who explored the caverns in the early 20th century and championed them. The astonishing bat flights and underground chambers drew growing attention, and Carlsbad Cave was protected as a national monument in 1923 and a national park in 1930. It was named a UNESCO World Heritage Site in 1995. Carlsbad Caverns preserves this underground wonder, its bat colonies and its history of exploration, a treasured icon of New Mexico.

Carlsbad Caverns formed in the limestone of the Capitan Reef, an enormous fossil reef built in a shallow sea some 250 million years ago and later buried, uplifted and exposed. Unusually, the caves were dissolved not by ordinary groundwater but by sulfuric acid rising from below (from hydrogen sulfide linked to oil deposits), which carved the huge chambers; the spectacular formations then grew drip by drip over hundreds of thousands of years as water seeped through. The ancient reef, the sulfuric-acid dissolution and the slow growth of formations created this spectacular cave system.

Carlsbad is world-famous for its bats — hundreds of thousands of Brazilian free-tailed bats roost in the cave in the warm months and pour out in spectacular evening flights to feed. Above ground, the Chihuahuan Desert hosts mule deer, coyotes, foxes, ringtails, javelina, rattlesnakes and lizards, and a rich birdlife including cave swallows at the entrance and raptors over the canyons. The cave also shelters specialized cave-adapted creatures. The bats are the great wildlife draw, but the surrounding desert offers fine wildlife and bird watching as well.

The park protects both a rare cave ecosystem and a swath of healthy Chihuahuan Desert — the largest desert in North America — with its cacti, agaves, ocotillo, desert grasses and adapted wildlife above, and the dark, stable, nutrient-poor cave environment below, sustained largely by the bats and the seeping water. The cave formations are extremely fragile and slow-growing. Protecting the bats, the cave’s delicate formations and humidity, and the surrounding desert sustains both the ecology and the spectacular beauty of this underground and desert wonder.

Carlsbad Caverns holds a treasured place among the natural icons of New Mexico and the nation — a UNESCO World Heritage Site, a wonder of the underground world, and the stage for one of nature’s great spectacles in the evening bat flight. Known to Native peoples and made famous by early explorers, the caverns embody the hidden grandeur beneath the desert. Carlsbad Caverns is a cherished icon of the American Southwest and one of the most spectacular cave systems on Earth.

Carlsbad Caverns National Park is in southeastern New Mexico, near the town of Carlsbad and the small community of Whites City, off U.S. 62/180, about a half-hour from Carlsbad and within reach of Guadalupe Mountains National Park in Texas. An entrance fee applies, and timed-entry reservations may be required for the self-guided cave; ranger-led tours require separate tickets and reservations. The visitor center offers the elevator, trail access, exhibits and the bat-flight amphitheater. Check the National Park Service for fees, reservations, tour tickets and bat-flight schedules before visiting.

The National Park Service protects the caverns, their fragile formations and the bat colonies. Visitors help by never touching the formations (skin oils stop their growth), staying on trails, following all rules to protect the bats (no flash during bat flights, no disturbing the roost), not bringing gear that could spread white-nose syndrome (decontamination may be required), and packing out everything above ground. The cave environment is delicate and slow to recover. Protecting the bats, the formations and the surrounding desert sustains both the ecology and the beauty of this underground wonder.

Inside the cave, paths can be steep, wet and slippery — wear sturdy, non-slip shoes, especially on the Natural Entrance trail, and pace yourself on the long climbs. The cave is cool; bring a light layer. Stay on trails and behind railings, mind the drop-offs, and supervise children. Above ground, the desert is very hot in summer — carry plenty of water, sun protection and watch for rattlesnakes. Some wild-cave tours are strenuous and require fitness. Respect the cave terrain, the cool damp surfaces, the desert heat and the wildlife.

An entrance fee applies; timed-entry reservations may be required for the self-guided cave, and ranger tours need separate tickets. Never touch cave formations. Stay on designated trails; do not enter closed or wild areas without a guided tour. No food, drink (except water), tobacco or gum in the cave; no tripods on self-guided routes. No flash photography during the bat flight. Pets are not allowed in the cave (kennels available). Drones are prohibited. Decontaminate gear per white-nose syndrome rules. Check the National Park Service for fees, reservations and current rules before visiting.

The town of Carlsbad with its riverwalk, Whites City at the park entrance, Guadalupe Mountains National Park just across the line in Texas (with the highest peak in Texas), and the Chihuahuan Desert lie near the park. The desert and the Guadalupe Mountains define the region. Carlsbad Caverns anchors a remarkable corner of southeastern New Mexico, a centerpiece of a Southwest adventure of caves, desert and mountains, easily combined with Guadalupe Mountains National Park and the town of Carlsbad.

Descend via the Natural Entrance trail if you can for the full sense of the cave (then take the elevator back up), and allow time to wander the vast Big Room loop. Reserve timed entry and any ranger-led tour in advance, and time your visit to catch an evening bat flight (spring through October). Wear non-slip shoes, bring a layer for the cool cave and plenty of water for the hot desert above, and never touch the formations. Combine your trip with Guadalupe Mountains National Park just across the Texas line.