Try Patrick Air Force Base CG. It is located near the Cape and is a pretty nice CG. The name of the CG is "MANATEE COVE CAMPGROUND" Says reservations are accepted. 407-494-4787. There is a nice CG on the naval station @ NAS Jacksonville, FL. 904-542-3227. Another Cg is located on the Naval Station Mayport , right on the St Johns river and the Atlantic Ocean. The name of the RV park is " Pelican Roost RV Park" 904-270-7808. It is not listed in The Trailer Life Rv Parks and Directory for some reason. Right next to it is the City of Jacksonville Rv Park "Kathryn Abbey Hanna Park" which sits right on the ocean next to the naval Station Mayport. 904-249-4700. Very nice park and lots of shade. Both Rv parks are easy to get to from I-95, Just exit onto 9A with directions to Naval Station Mayport which will be going East from I-95.
I WOULD SUGGEST THAT YOU MAKE RESERVATIONS AS EARLY AS YOU CAN. Florida being a destination for winter snow birds fills up most CG's during the COLD WINTER MONTHS.
Good luck and welcome to the great state of Florida
Sid & HRH Daisy