Near to Cancun lies a mass of underground cavern systems that are one of the largest fresh water sources in the world. These underground cavern systems are called Cenotes.
This complete ecosystem was formed by dripping rain water that created an underwater fantasy of magnificent stalagmites and stalactites. Sunlight penetrates multiple openings that make this the best place in the world for cavern diving.
To experience the Cavern Diving in Cenotes you just need your Open Water Certification. The main rules in cavern diving are: Dive within the day light zone, follow a continuos guide line, stay away from small spaces and dive with a certified guide.