Gulf Islands National Seashore encompasses over 100 km of protected barrier islands and coastal areas from Mississippi to Florida, with the Florida district centred on Pensacola. The National Seashore protects the undeveloped portions of Santa Rosa Island (east of Pensacola Beach toward Fort Pickens) and provides the best beach access in the area, away from the commercial beach strip.
Within the Florida district, the National Seashore also includes Fort Pickens, Fort Barrancas, and the Naval Live Oaks Reservation in Gulf Breeze. Entry requires a per-vehicle fee (annual National Parks pass accepted). The snorkelling around the Fort Pickens jetty is the best in the area; the hike to Battery Worth gives good Gulf views. Wildlife includes nesting sea turtles (marked nests are left undisturbed) and large flocks of shorebirds.