Cenote Chaak Tun, Playa del Carmen

Two clandestine caves make up Cenote Chaak Tun—one which is completely closed with a centuries-old stalactite-covered ceiling, and one which has a slight opening at the top which scatters a few beams of natural light. Though it’s certainly not for the claustrophobic—or those afraid of bats—travelers who are adventurous enough to enter will want to do so with a headlamp or powerful flashlight. For those diving the site, rumor has it there’s a stone replica of the Virgin of Guadalupe hidden in the depths of the first cave.