Morgan O’Hanlon: As you’re driving through West Texas and through Balmorhea, this kind of big open desert, you get to the Phantom Springs Cave and it’s this tiny little narrow crevice.

Researchers exploring Phantom Springs Cave near Balmorhea have documented new species in one of North America’s deepest underwater cave systems. The fragile ecosystem, accessible only to specialized ...

Divers in Mexico's Yucatan Peninsula say they have discovered the world's largest underwater cave. Underwater archaeologists discovered last week that the cave system known as Sac Actun, located near ...

Located east of Malaga, Treasure Cave long attracted divers and visitors without revealing its deeper historical importance. That changed when researchers identified human footprints preserved in ...

The longest known underwater cave in the world is even longer than we thought. As of the start of this year, cave divers have mapped 524 kilometers (325.6 miles) of a subterranean water 'web' near ...

Underwater caves off the coast of Sicily offer new clues about the island’s first human inhabitants. They may have arrived by sea, not by land, as previously assumed. Sicily is one of the earliest ...

Hidden beneath the water’s surface, these caves offer a unique beauty that few have the chance to witness. Imagine swimming in crystal-clear waters, surrounded by dramatic rock formations, and ...

A body discovered in the depths of an underwater cave in Southern California may be that of a scuba diver who vanished two years ago, officials announced Monday. The Santa Barbara County Sheriff’s ...