Vietnam's Son Doong, the world's largest cave passage, started its life millions of years ago as a crack the width of a piece ...

Son Doong, the world's largest cave passage — big enough to fit a skyscraper — is deep inside a Vietnamese jungle. Exploring ...

Beneath the surface of an otherwise unassuming National Park, a labyrinth showcases hundreds of millions of years of geologic history. Each shade of tan layered on the walls represents a different era ...

Caving is often considered a risky hobby, but once you understand its appeal, it starts to make sense. Here’s why, for some people, the need to explore caves is so rooted in the flow state. Most of us ...

On Sunday’s episode of The Excerpt podcast: Hidden beneath Earth’s surface are caverns and pathways that hold the secrets of our planet’s very beginnings. Even after decades of exploration, there are ...

Email notifications are only sent once a day, and only if there are new matching items. To find out more information about caving and local organizations near you, visit the National Speleological ...

The Cave (2005) is an American survival-thriller drama film. A group of adept cave divers and scientists get badly caught while exploring a cave in Romania. When deadly creatures attack them, this ...