I should warn you that most dive shops will not promise a specific dive site. Though the Palancar Reefs are beautiful, I think all of the reefs here have their own beauty and appeal. In fact, one of my favorite dives is probably to do Paradise Reef from shore. Then I can take my time, examine all the little nooks and crannys in the coral...
Generally, the procedures of the dive shops is to wait until that morning, when everyone is on the boat... then they discuss skill levels of the various divers on the boat and they look at the weather, the current and visibility in order to decide where to go.
From Playa del Carmen, you can walk downtown in the main square. There are a few dive shops in the main square that are affiliated with dive shops in Cozumel. They can help you set up dives in Cozumel.
Achu
Generally, the procedures of the dive shops is to wait until that morning, when everyone is on the boat... then they discuss skill levels of the various divers on the boat and they look at the weather, the current and visibility in order to decide where to go.
From Playa del Carmen, you can walk downtown in the main square. There are a few dive shops in the main square that are affiliated with dive shops in Cozumel. They can help you set up dives in Cozumel.
Achu