The city of treasure island fl is a small barrier island off the St Petersburg coastline. This small, family friendly resort is a quiet community and a good choice for vacationers on a budget. treasure island beach fl is joined to the mainland and neighboring barrier islands by 3 separate bridges. Keen fishermen should check out John's Pass that separates treasure island fl from madeira beach. Here you will find a good selection of charter boats offering fishing and sightseeing excursions. Besides fishing, this beach community has lots of other things to offer including shopping, dining and nightlife. As you cross over the main pass onto the island you will see Kingfish Wharf, a charming assortment of stores and dining options. We believe treasure island fl vacation rental home is a smart choice for families seeking a quiet resort on a budget.