Stretching for hundreds of miles beneath the surface, this is the largest cave system in the United States — a hidden world ...

Lantern light limestone and a river powered maze make this Kentucky cavern the state’s most mesmerizing underworld.

Looking for an adventure that’s cool (literally) and completely out of the ordinary? The United States is home to some of the ...

Highlights of the five-night trip include seeing the cave’s own rainforest and a calcite wall called the Great Wall of Vietnam. Vietnam is home to the world's largest cave. It's so vast that it has ...

Around 700,000 people visited Mammoth Cave National Park last year. Until the shutdown ends, all underground cave tours are ...

Jewel Cave, South Dakota: America’s third-longest cave system offers wild tours requiring participants to scramble over ...

If you're looking to do some cave diving, look no further than the Cherney Maribel Cave County Park.

Though cave tours at the Mammoth Cave National Park have been suspended, visitors can still access campgrounds and trails.

Carlsbad Caverns National Park officials cautioned a traveler who'd left their chips packet in the Big Room last year, claiming it caused the perfect storm.

A rare bite into the past. The fossilized tooth of a newly discovered ancient shark species – dating back about 340 million years – has been unearthed in the world’s largest cave system, officials ...