This 28-mile-long barrier island is home to white-sand beaches, bay forests, salt marshes and an inoffensive mix of summer homes and condos. It's a fine spot for shelling, kayaking, sailing, swimming, or just generally zoning out in waterfront bliss. At the end of every street on the island you'll find public beach access and, generally, plentiful parking.
For all that, the highlight of the island is St George Island State Park, which preserves a breathtaking slice of coastal wilderness. The primal, yet gentle beauty of the dunes and marshes is a world removed from the rental houses mere miles away.