A state park in eastern Kentucky is throwing a summer party pool, but instead of being under the sun, it'll be deep inside a cave. This year, Carter Caves State Resort Park is opening up Cave Branch ...

This cave pool, found in the Lechuguilla Cave of New Mexico, appears to be completely pristine. It was discovered in October at Carlsbad Caverns National Park. Max Wisshak photo/Carlsbad Caverns ...

This tucked-away lodge experience brings the drama in the best way, with steaming natural water, cool alpine air, and a ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." No other accommodation brings you this close to the earth while feeling completely otherworldly. There’s ...

This video showcases the complete construction of a platinum underground cave pool with a private underground living room. Built using traditional techniques, the project combines luxury design with ...

An incredible cave network has been discovered 700ft below a national park. Stunning pictures show a "wondrous" blue pool - never before been seen by human eyes - which was found in the depths of ...