July 26, 2013

Cenote Near Tulum, Mexico

Photograph by Paul Nicklen, National Geographic

A diver explores a cenote near the Maya ruins of Tulum in Mexico's Yucatán Peninsula. Ancient Maya believed that cenotes and caves were mouths that opened into an otherworld inhabited by Chaak, the god of life-giving rain.

See More Photos of Maya Underwater Secrets in Mexico's Yucatán >>

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