Studland's 5km of sandy beach is a popular tourist destination, owned and managed by the National Trust since 1982. It is characterised by an extensive ridged dune system that has developed since 1700 and forms a key site for coastal geomorphology studies. Behind the dunes lies large tracts of heathland, designated a National Nature Reserve. Studland Dunes comprise the only large dune heath site in the south and south-west of Britain and provide an important habitat for rare butterflies, Red Data Book insects and all six of Britain's reptile species, including the endangered sand lizard. Other important wildlife habitats include intertidal mudflats and saltmarsh. [National Trust]