Süderoog is one of the Halligen, a group of islands in the North Frisian Wadden Sea, off the west coast of Schleswig-Holstein in north Germany. It belongs administratively to the parish of Pellworm and is a bird reserve.
Before the Burchardi flood in 1634 there were three houses on the island, one of which was inhabited by the beach lookout. He was also the caretaker of the beacon, which was destroyed during the storm surge of 1634. In this storm tide, two houses were destroyed and ten people were drowned. In the February flood of 1825 the last remaining house was destroyed. It was rebuilt, however, and served again as the residence of the lookout. Today the Hallig has an area of 62 hectares and is currently farmed organically by a husband and wife.
Wikipedia https://en.wikipedia.org/wiki/Süderoog
Official Website https://www.halligsuederoog.de/
Coordinates 54°27'50.439" N 8°33'10.765" E