We LOVED it ! Its really nice. We have been so many of the beach clubs and this one is the best in Cozumel. Its not packed and the beach is wonderful. We had great service both time and the food and drinks are awesome.
They have loads of beach activities if you want them, jetskis, snorkeling, etc so there is something for everyone.
I'm pretty sure you have to book ahead. We booked through Cozumel Cruise Excursions Nachi Cocom Beach Break