Descending into Crystal Cave is so surreal that it feels like you're entering a movie set and at any moment Indiana Jones will come swinging through with his whip. The nearly 130-year-old cave is not ...

Try as I might to deny it, there’s no disputing the science: I have a Y chromosome. The fact-based truth is, biologically speaking, I’m a man — no matter how zaftig a figure I cut in yoga pants ...

Ellison's Cave in Georgia is the deepest cave in the state and features the deepest unobstructed pit in the continental ...

If you're up for an adventure, the Lava River Cave delivers. Approximately 700,000 years ago when molten rock erupted from a vent in nearby Hart Prairie, the milelong Lava River Cave was formed. Today ...

Which backpacks for spelunking are best? Spelunking, also known as caving or potholing in some countries, is a unique way to explore the world around you. If you want to get underground, whether in ...

Editor’s note: The closure of a 46-mile stretch of Interstate 70 in western Colorado may make it difficult to reach some of the locations listed. Please check cave websites or codot.gov before heading ...