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 ...

This incredible submerged cave network is the longest of its kind in the world and plays a vital role in the region.

Cenotes in the Yucatán Peninsula are time capsules preserving remnants of Maya culture and fossils of extinct megafauna Martin Broen - Freelance writer The underwater caves of the Yucatán Peninsula ...