The majority of the Hidden World visitors describe this experience as the highlight of their trip to Mexico’s Yucatan peninsula. Hidden Worlds provides an authentic experience of the region’s awe-inspiring complex of caverns and cenotes that envelop one of the world’s longest underground waterways. These natural reservoirs were the lifeblood of the Mayan people for thousands of years.

Hidden Worlds Cenote Park is located in the heart of the Yucatan’s underwater cenote region, next to Riviera Maya and is offering the unique opportunity to experience Cenote Diving at its best. For Certified Open Water Divers, Hidden Worlds Cenote Park offers the world’s most incredible cavern dives.

Achieving worldwide-renown among scuba divers, Hidden Worlds has been rediscovered by nature lovers of all ages who come to observe its unique ecosystem via our environmentally-friendly Skycycle Canopy Ride, Jungle Zip-lines, Rappelling, Cavern Snorkel Adventures, and a Cenote Splashdown Zip-line while surrounded by the lush Mayan jungle. 
Come and experience the ecoadventure of your life !
http://www.cancuntravel.com/cavern-dive.asp