The waiters at the beach club will tell you not to bring in food and drinks...They told us that we had to move away from the club if we planned on eating and drinking our own stuff. (after we paid for our palapa and chairs). There were a few security guards keeping an eye out.
The sand there is white and the beach is more flat and easier to walk on than in Playa. If you head north, you will see the ruins from the beach. If you go south, you just might find you have the beach to yourself.