Today we went for a short walk in Schlüsselburg. Schlüsselburg is located in the north of Petershagen on the Weser river and is mainly known for the barn district (Scheunenviertel) and of course the Schlüsselburg castle built in 1335. In Schlüsselburg there is a 2 km long circular route of the Biological Station Minden-Lübbecke e.V. […]