http://www.nps.gov/guis/pphtml/camping.html
"Located on the west end of Santa Rosa Island, south of Pensacola,the Fort Pickens Campground has 200 sites. Campsites feature paved parking pads, picnic tables, grills, water and electric hook-ups, and are located in an area which includes grass, pine, and oak trees. The Gulf of Mexico and Pensacola Bay are a short walking distance from the campground. All sites have electricity and are $20 per night. Overnight stays are limited to 44 days per calendar year, with no more than 14 days between March 1 and Labor Day."
So when you get a moment and aren't busy