Diving Mexico's Cenotes by Greg Annandale on Exposure
Diving the collapsed pits and sinkholes of the Yucatán Peninsula is a world away from the rich coral reefs and walls off Playa del Carmen and Cozumel. Besides the odd fish or terrapin, the cenotes are pretty much devoid of animals. But alongside the crystal clear water, the rock formations (which vary from clumps of fragile stalactites to grandiose boulders and chambers) and the interaction with the world above (be that from tree roots working their way down the rock or shafts of light burning through the darkness) come together to produce a stunning experience for the diver.