What is a cenote? Cenote is a natural sinkhole which resulted from the collapse of limestone bedrock that exposes groundwater underneath. This article is talking about the Cenote Yucatan Peninsula of Mexico which is one of the best cenotes in the world. The water in Cenote Yucatan is very clear because the water comes from rain water. The rain water filters slowly through the ground and naturally remaining very low water in this amazing hole….