National Geographic : 2013 Aug
Ancient Maya believed that the rain god Chaak resided in caves and natural wells called cenotes. Maya farmers today in Mexico's parched Yucatán still appeal to Chaak for the gi of rain. Meanwhile cenotes are giving archaeologists new insights into the sacred landscapes of the ancestral Maya. PAUL NICKLEN A DIVER EXPLORES A CENOTE NEAR THE MAYA RUINS OF TULUM.