North Carolina State Parks have no rules against hammock use in any of the parks. However I'd give them a call to ensure that a hammock is even feasible. A lot of beaches don't have the trees necessary to support a hammock afterall.
Originally Posted by CJK
According to the rangers at Falls Lake SRC there's no regulation prohibiting hammock camping. They actually welcomed it at Shinleaf. Carolina Beach should operate under the same regulations, but I wouldn't trust a drive from Charleston on it.
I've yet to camp at Shinleaf, walked around there one day last year. All the blow downs at the time had me a slight bit concerned as to how safe it would even be to camp there at all.
Would still like to stay there a night though, if for no other reason to mark it off my todo list.