Fodor's Expert Review Egmont Key State Park

In the middle of the mouth of Tampa Bay lies the small (350 acres), largely unspoiled but critically eroding island Egmont Key, now a state park, national wildlife refuge, national historic site, and bird sanctuary. On the island are the ruins of Ft. De Soto's sister fortification, Ft. Dade, built during the Spanish-American War to protect Tampa Bay. The primary inhabitants of the less-than-2-mile-long island are the threatened gopher tortoise and box turtles.

The only way to get here is by boat, and you can catch a ferry from Ft. De Soto, among other places; area operators include Hubbard's Marina, Dolphin Landings, and Island Boat Adventures. It's well worth the trip—the beach here is excellent for shelling, secluded beach bathing, wildlife viewing, and snorkeling.