Cenote Maya is only accessible through a private guided tour. This tour through Alltournative was strongly recommended to us by a local in Playa del Carmen and we were so glad that we took his advice. The tour begins with a visit to the magnificent archaeological site of Ek Balam and ends with lunch and a refreshing cool off at the Cenote Maya......for more see http://oceaneyecandy.com/review/snorkeling/41/Cenote-Maya