To add a bit more clarity on the restricted areas and MOAs:
R-2903 and 2904 (around Keystone (42J): some part is typically active all the time
Palatka 1 and 2 MOAs, R-2906, 2907, 2910 are typically cold.
Jekyll Island (09J) which is just south of St Simons is a nice place to stop. They have...