Alabama Campgrounds on the Beach

Does anyone know of a camp on the beach in Flordia Alabama area in the Gulf?
Yes, Big Lagoon State Rec Area west of Pensacola or Gulf State Park near Gulf Shores, Alabama. I think both are on the beach or near it. Here is a URL with some pictures of the Big Lagoon: http://www.floridastateparks.org/biglagoon/Photos-Park.cfm
Lake Guntersville State Park