Hamford Water is a 2185.8 biological Site of Special Scientific Interest between Walton-on-the-Naze and Harwich in Essex. It is also a Ramsar site, a Special Protection Area, a Nature Conservation Review site, and most of it is a National Nature Reserve. Two small areas, Skipper's Island and John Weston Nature Reserve, are managed by the Essex Wildlife Trust. The largest island, Horsey Island, can be reached on foot at low tide across The Wade from Kirby-le-Soken.