Saltfleetby National Nature Reserve
Saltfleetby-Theddlethorpe Dunes is a national nature reserve on the coast of Lincolnshire, England, in the parishes of Saltfleetby and Theddlethorpe. It is managed in part by Natural England; in part by the Lincolnshire Wildlife Trust, and consists of 1,377 acres (557 ha) of sand dunes, salt marsh, sand and mudflats.
The reserve is one of only a handful of locations in the UK where the natterjack toad can be found .
Coordinates: 53°24′08″N 0°12′23″E / 53.4023°N 0.2064°E