ultraviolet index in Boca Chica Key (Long Point) (1.6 mi.) | ultraviolet index in Rockland Key (Rockland Channel Bridge) (2.4 mi.) | ultraviolet index in Big Coppitt Key (Northeast Side, Waltz Key Basin) (2.4 mi.) | ultraviolet index in O'Hara Key (North End, Waltz Key Basin) (2.6 mi.) | ultraviolet index in Waltz Key (Waltz Key Basin) (2.6 mi.) | ultraviolet index in Channel Key (West Side) (2.9 mi.) | ultraviolet index in Shark Key (Southeast End, Similar Sound) (2.9 mi.) | ultraviolet index in Boca Chica Marina (4 mi.) | ultraviolet index in Bird Key (Similar Sound) (4 mi.) | ultraviolet index in Saddlebunch Keys (Channel No. 5) (4 mi.) | ultraviolet index in Boca Chica Channel Bridge (4 mi.) | ultraviolet index in Saddlebunch Keys (Similar Sound) (4 mi.) | ultraviolet index in Saddlebunch Keys (Channel No. 4) (4 mi.) | ultraviolet index in Key Haven - Stock Island Channel (4 mi.) | ultraviolet index in Boca Chica Key (Southwest End) (5 mi.) | ultraviolet index in Snipe Keys (Middle Narrows) (5 mi.) | ultraviolet index in Snipe Keys (Snipe Point) (5 mi.) | ultraviolet index in Saddlebunch Keys (Channel No. 3) (5 mi.) | ultraviolet index in Snipe Keys (Southeast End, Inner Narrows) (5 mi.) | ultraviolet index in Cow Key Channel (5 mi.)