Cenote Zací

Lonely Planet review

Among the region’s several underground cenotes is Cenote Zací, set downtown in a park that also holds traditional stone-walled thatched houses and souvenir shops. People swim in this open-air swimming hole, and while it's pleasant enough, don't expect crystalline waters. Look in the water for catfish or overhead for a colony of bats. Enter the cenote from Calle 39.