ultraviolet index in Folly Creek (Hwy. 171 Bridge) (1.0 mi.) | ultraviolet index in Folly Island (outer Coast) (1.1 mi.) | ultraviolet index in Folly River (North, Folly Island) (1.7 mi.) | ultraviolet index in Abbapoola Creek Entrance (4 mi.) | ultraviolet index in Snake Island (4 mi.) | ultraviolet index in James Island Creek (1 mi. above ent.) (6 mi.) | ultraviolet index in Fort Johnson (7 mi.) | ultraviolet index in Wappoo Creek (7 mi.) | ultraviolet index in Fort Sumter (7 mi.) | ultraviolet index in Elliott Cut Entrance (8 mi.) | ultraviolet index in Charleston (8 mi.) | ultraviolet index in South Ashley Bridge (8 mi.) | ultraviolet index in The Cove (Fort Moultrie) (9 mi.) | ultraviolet index in Oak Branch (Bohicket Creek) (9 mi.) | ultraviolet index in Church Creek Bridge (9 mi.) | ultraviolet index in Ben Sawyer Bridge (10 mi.) | ultraviolet index in Sullivans Island (outer Coast) (10 mi.) | ultraviolet index in Shem Creek (10 mi.) | ultraviolet index in Sandblasters (Pennys Creek) (10 mi.) | ultraviolet index in Pennys Creek (West Entrance) (10 mi.)