ultraviolet index in Saddlebunch Keys (Channel No. 5) (0.8 mi.) | ultraviolet index in Saddlebunch Keys (Channel No. 4) (1.1 mi.) | ultraviolet index in Bird Key (Similar Sound) (1.3 mi.) | ultraviolet index in Shark Key (Southeast End, Similar Sound) (1.5 mi.) | ultraviolet index in O'Hara Key (North End, Waltz Key Basin) (1.9 mi.) | ultraviolet index in Saddlebunch Keys (Channel No. 3) (2.0 mi.) | ultraviolet index in Big Coppitt Key (Northeast Side, Waltz Key Basin) (2.1 mi.) | ultraviolet index in Rockland Key (Rockland Channel Bridge) (3 mi.) | ultraviolet index in Waltz Key (Waltz Key Basin) (4 mi.) | ultraviolet index in Snipe Keys (Southeast End, Inner Narrows) (4 mi.) | ultraviolet index in Duck Key Point (Duck Key, Waltz Key Basin) (4 mi.) | ultraviolet index in Snipe Keys (Middle Narrows) (5 mi.) | ultraviolet index in Perky (5 mi.) | ultraviolet index in Boca Chica Key (Long Point) (5 mi.) | ultraviolet index in North Harris Channel (6 mi.) | ultraviolet index in Boca Chica Marina (6 mi.) | ultraviolet index in Boca Chica Key (Southwest End) (6 mi.) | ultraviolet index in Park Channel Bridge (6 mi.) | ultraviolet index in Boca Chica Channel Bridge (6 mi.) | ultraviolet index in Channel Key (West Side) (6 mi.)