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 ...

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 ...

Ox Bel Ha, located beneath Mexico’s Yucatán Peninsula, has officially reclaimed its title as the longest underwater cave system in the world, stretching an astonishing 524 kilometers. This submerged ...

Add Yahoo as a preferred source to see more of our stories on Google. When you buy through links on our articles, Future and its syndication partners may earn a commission. Why it's incredible: This ...

Archaeologists discovered 8,000-year-old human remains in an underwater cenote cave in Mexico’s Yucatán Peninsula.

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