Gibraltar Point national nature reserve is an area of about 4.3 km2 (1.7 sq mi) on the coast of Lincolnshire, England.The reserve is owned by Lincolnshire County Council and East Lindsey District Council and is administered by the Lincolnshire Wildlife Trust. The reserve comprises two parallel ridges of sand dunes—the "east dunes" and the "west dunes"—separated by about half a kilometre (550 yards) of salt marsh; and an area on the seaward side with further salt marsh and sand, shingle and muddy beaches.