Cenote Zapote is truly one-of-a-kind. Located on the “Ruta de los Cenotes” west of Puerto Morelos, this cenote is named after the zapote trees nearby. This cenote is nicknamed “Hells Bells” because its biothem formations look like bells, which can only be found in a few surrounding cenotes.

Biothems are geological formations that are composed of the accumulated remains of living organisms. That’s right, these bell formations are alive and continue to grow ever so slowly.

This cenote is shaped like an hourglass with the center located 20m/66ft deep. In the lower chamber, you’ll see the impressive bell formations covering the ceiling. There is a hydrogen sulfide cloud around 30m deep just above the talus cone.