Nearest camping would be in the Susua Forest Reserve. La Parguera Nature Reserve. No camping allowed. Mangroves, many mangrove keys, estuaries, coral formations and good water clarity. Good snorkeling around small mangrove cays.
Town offers zoo-like atmosphere on weekends, many fish restaurants.
Las Cabezas de San Juan Nature Reserve. No camping allowed. With prior reservation and fee they trolley you through to the lighthouse, rocky beach and mangrove boardwalk, knowledgeable guides. Call ahead for reservations, hard to get. The bioluminescent lagoon can be accessed by boat from Las Croabas dock or rent a kayak.