The park may be closed but carry is still allowed in SC State Parks. SECTION 51-3-145. Certain acts unlawful at state parks.
(G) Possessing any firearm, airgun, explosive, or firework except by duly authorized park personnel, law enforcement officers, or persons using areas specifically designated by the department for use of firearms, airguns, fireworks, or explosives. Licensed hunters may have firearms in their possession during hunting seasons provided that such firearms are unloaded and carried in a case or the trunk of a vehicle except that in designated game management areas where hunting is permitted, licensed hunters may use firearms for hunting in the manner authorized by law. This subsection shall not apply to a person carrying a concealable weapon pursuant to Article 4, Chapter 31, Title 23, and the concealable weapon and its ammunition.