I know a guy at work that goes there often. He tells me that the ride around the island is real nice. They have a beach on the western part called Playa Rincon around Aguadilla. I wanted to see the rainforest east of San Juan, but having been to many rainforest in Central America, it was really no big deal that I saw it or not. I bet if you just drove around the island, you could find an off the wall spot to go on the nice beaches. There is a nice beach on the southern end of the island, or Caribbean side, but I can't remember the name. It's the Puerto Ricans most popular beach. I also suggest you rent a car, its like driving in the states, and from what I saw, the roads looked good. Get out there, mingle and try all the foods they have. They like alot of "avichuelas" or beans with their rice, and plantain, pastellitos (empanadas). Nice tropical look to the island.