Cenotes in Riviera Maya

Mexico's Yucatán Peninsula is home to more than 6,000 cenotes—subterranean limestone pools full of crisp groundwater, stalagmites, stalactites, and endemic wildlife (think: bats by the colony and fish by the school). Next time you find yourself in Riviera Maya—be it Tulum, Playa del Carmen, or Puerto Aventuras—excuse yourself from the resort infinity pool to check out these natural swimming holes.