Hola Senorita!!!
Como esta usted? Just returned from Cozumel, and did a couple of dives in Puerto Morelos, not too far from Playa del Carmen. I did the wreck C56, also known as the "Juan Escutia" and also a Cenote called Chikin Ha or "The Western Water." I went with an operator called Ecodiving Tours (ecodivingtours.com) They are good people, and treat you right. Check them on the web, to see if they fit what you are looking for. Enjoy your wet time!!!
Seawolf5