Revision 11/01/2010 6:01 PM
Located just past Puerto Aventuras Cenote Cristalino is located on the right hand side heading South on 307. Known as a local hangout, you can bring in a cooler, and blanket and just chill out for the afternoon. There is a great jump off point, a cave to explore, and a bathroom facility by the entrance.
Entrance is only 30 pesos for adults and 15 pesos for children. On Sundays it overflows with locals trying to beat the heat and enjoy their only day off. So if you are opposed to crowds we suggest you try going during the week.