The Husum-Bad Sankt Peter-Ording railway is a 44 km-long, single-track non-electrified branch line in the German state of Schleswig-Holstein. The line connects the North Frisian town of Husum with all the important parts of the Eiderstedt peninsula, including Tönning, Garding and Sankt Peter-Ording. The line opened in 1854 and was one of the oldest railways in Germany.
Passenger trains are operated by the Nord-Ostsee-Bahn, a subsidiary of Veolia Verkehr, at hourly intervals.
Wikipedia https://en.wikipedia.org/wiki/Husum–Bad_St._Peter-Ording_railway
Coordinates 54°18'59.897" N 8°41'21.664" E