The World’s Biggest Underwater Cave Is Full of Maya Bones and Artifacts

Mexico’s San Actun cave system contains pottery, bones of extinct giant sloths, and a 9,000-year-old human skull.

Becky Ferreira | MOTHERBOARD

It sounds like the premise to an Indiana Jones movie, but it’s real life: The eerie crevices and taverns of the world’s largest underwater cave system contain the remains of ancient humans and extinct beasts from a bygone age.

A skull that belonged to a person who lived 9,000 years ago is among the bounty of relics found within the flooded caves of San Actun, according to an Instituto Nacional de Antropología e Historia (INAH) statement released Monday. INAH archeologist Guillermo de Anda, who is the director of the Gran Acuifero Maya (GAM) project that is leading the effort to map these caves, told Reuters that San Actun is “the most important underwater archaeological site in the world.”

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