indice ultravioletti a Salisbury Point (4 mi.) | indice ultravioletti a Riverside (Haverhill) (5 mi.) | indice ultravioletti a Newburyport (6 mi.) | indice ultravioletti a Plum Island (Merrimack River Entrance) (9 mi.) | indice ultravioletti a Hampton Harbor (10 mi.) | indice ultravioletti a Plum Island South (13 mi.) | indice ultravioletti a Squamscott River Rr. Bridge (16 mi.) | indice ultravioletti a Essex (17 mi.) | indice ultravioletti a Annisquam (20 mi.) | indice ultravioletti a Portsmouth (21 mi.) | indice ultravioletti a Jaffrey Point (21 mi.) | indice ultravioletti a Salem (21 mi.) | indice ultravioletti a Atlantic Heights (22 mi.) | indice ultravioletti a Seavey Island (22 mi.) | indice ultravioletti a Gosport Harbor (Isles Of Shoals) (22 mi.) | indice ultravioletti a Dover Point (22 mi.) | indice ultravioletti a Rockport (22 mi.) | indice ultravioletti a Fort Point (22 mi.) | indice ultravioletti a Gloucester Harbor (22 mi.) | indice ultravioletti a Gerrish Island (22 mi.)