ultravioletindeks in Presumpscot River (1.0 mi.) | ultravioletindeks in Portland (1.3 mi.) | ultravioletindeks in Fore River (2.6 mi.) | ultravioletindeks in Great Diamond Island (2.9 mi.) | ultravioletindeks in Peak Island (3 mi.) | ultravioletindeks in Cow Island (4 mi.) | ultravioletindeks in Cushing Island (4 mi.) | ultravioletindeks in Portland Head Light (4 mi.) | ultravioletindeks in Long Island (5 mi.) | ultravioletindeks in Falmouth Foreside (5 mi.) | ultravioletindeks in Vaill Island (5 mi.) | ultravioletindeks in Great Chebeague Island (7 mi.) | ultravioletindeks in Prince Point (7 mi.) | ultravioletindeks in Cliff Island (Luckse Sound) (8 mi.) | ultravioletindeks in Doyle Point (8 mi.) | ultravioletindeks in Pine Point (Scarborough River) (10 mi.) | ultravioletindeks in Old Orchard Beach (12 mi.) | ultravioletindeks in South Harpswell (Potts Harbor) (13 mi.) | ultravioletindeks in South Freeport (13 mi.) | ultravioletindeks in Biddeford (Saco River) (16 mi.)