<p>A diver explores a cenote in Tulum, Mexico. Ancient Maya believed that the rain god Chaak lived in these natural wells. Now they are giving archaeologists new insights into the sacred landscapes of the ancestral people.</p>

Cave Diving in Tulum, Mexico

A diver explores a cenote in Tulum, Mexico. Ancient Maya believed that the rain god Chaak lived in these natural wells. Now they are giving archaeologists new insights into the sacred landscapes of the ancestral people.

Photograph by Patrik Gustafsson, National Geographic Your Shot

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