Cave Divers Explore the Yucatan’s Underwater World

Over thousands of years, the limestone peninsula is eroded away by the annual rains, creating one of the most spectacular underwater worlds on Earth. Down to the peninsula’s unique geology, there are over 8,000 cenotes, or natural wells, across the peninsula. Cave divers take the risk to enter this secret world and reveal its secrets.
Aired: 8/1/2018 | 0:02:13
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