Other forms: cenotes
A cenote is a sinkhole created when a limestone cave partially collapses, exposing a pool of crystal-clear water at the bottom.
Cenotes are particularly common in the Yucatán Peninsula in Central America. Cenote comes from the Maya word dz’onot, meaning "cavern with water." These natural reservoirs were important to the Mayans — they were believed to be gateways to the underworld; they were used for sacrificial offerings; and they were a key source of water. These days they're perfect for swimming in a cave and relaxing in the sun at the same time!