I haven’t been there, but one site says “there are no parking lots or stores or other businesses on the island” so if you don’t own a house you don’t have any place to put a car. There are several resorts so you might check on what they offer, but Don Pedro, aka Palm Island, aka Little Gasparilla Island, is pretty much a place where you go to sit on the beach. They do have a kid’s kayaking camp, and if you stay at Palm Island Resort they have “two playground areas, a recreation center and diverse special programs. Among them are nature hunts, self-guided bicycle nature tours, scavenger hunts, sand castle building contests, arts & crafts, shell hunts, shell crafts and more.” Basically, you might want to go there either for the full resort experience, or just for a day at the beach. I used to live in Florida and would have loved to go there, but then I am not a small child and I love just sitting on the beach.