the beaches on czm were badly battered by Wilma. Lots of sand moved from point a to b. You can detect on the beaches but don't expect to find much. They have been worked for many years by locals and tourists. Now and then a security guard may give you a hard time or a local who feels he has the right to a beach. Places to look. Playa Azul or some of the beach area off San Franciso Beach.