Düne
Düne is one of two islands in the German North Sea Coast Area that belong to the Archipelago of Heligoland, the other being Heligoland proper.Geography
The small island Düne is part of the German State Schleswig-Holstein. Situated to the east of the main island Heligoland, Düne is part of the natural landscape of :de:Helgoländer Felssockel|Heligoland rock core. The island measures in length and in width.History
Until the 17th century, Düne was connected to Heligoland. On New Year's Eve 1721 a big storm surge separated the dunes from Heligoland. Therefore, the island that arose was called Düne . In 1935 the size of the island was. In 1940 the Nazi government increased the size of the island to. This increase was for military use. An airfield was built that is still used today. The Heligoland Airport has three runways, of which the longest is.