We've stayed at Savannah KOA and Anastasia SP. The Savannah KOA is a nicer KOA-it's been 3 yrs. since we've stayed there. -I think it's Exit 87? and it's right there off of I-95. There is a McDonald's at the exit.
Anastasia SP is one of our favorite campgrounds. It's about 15-20 min. drive to the park from I-95. The campsite isn't on the beach but it's walking distance. If you can get into the Coquina section (site #129 is our favorite) it's close to the beach and easier access to getting in and out of the park. The lighthouse is about 500 ft. from the entrance of the park. The ft. is a few miles down the street and over the bridge. if you have time it's worth it. The oldest school house is across from the ft. along with a huge playground if you have children.
Anastasia is where we are heading for Spring Break 09