Try Armando Elizalde of Scubacenote for cenote dives. He offers the highest quality service at the lowest price. $85 USD for a double tank cenote dive which includes lunch, equipment and all entrance fees. Contact Armando at scubacenote@hotmail.com or +(52) 984 131 2391. The Riviera Maya has the best cavern diving in the world...it is a must do.