Check out Top Sail Reserve SP and Henderson SP over by Destin. You will love them over anything in Panama City. JMHO. Plus it's a nice ride down Hwy98 to Panama City from Destin.
If you have to be closer to Panama City Beach check out St Andrews SP. It's on the bay and about 1/2 mile to the beach.
If your military check out the navy base, we call it Coastal Systems but that's not the real name. It's on paths across america web site. Good Luck