The cave is located in the southern part of the Dalwigker Holz, about 800 m east of Dorfitter and just as far northwest of Obernburg, on the steep southern slope within the forest area north over the Kuhbach, which describes a short loop to the east here, which further south between Dorfitter and Thalitter in the Itter flows. Like the forest, it is named after the village of Dalwigk, which was destroyed in 1624.
In the Kuhbachtal, the route of the Lower Edertalbahn, which opened in 1900, closed in 1991 and reactivated in 2015 (also known as the National Park Railway since 2015), runs between Frankenberg and Korbach.
The naturally formed karst cave has a length of 132 meters and is the second largest accessible cave in North Hesse. It was opened up through a former mine tunnel opening into the Kuhbachtal, which was created in 1916 during the search for copper ore, but was abandoned after about 300 m of advance due to unsuccessfulness. The cave can only be reached via this search tunnel. The tunnel cuts through the western part of the cave after about 100 m; it is only about one meter wide and 1.20 m high, so that access is very difficult.
Where the tunnel reaches the cave, it forms a high vault, on the walls of which lime-dissolving water has created distinctive “flowing” structures. At the end of the vault, another, as yet unexplored, very narrow sinus opens up, presumably part of an extensive, subterranean stream system. A slight breeze suggests that this continuation of the cave ends in crevices somewhere on the surface of the earth. The eastern, much longer section of the cave consists of a sometimes very narrow tunnel system
Source: wikipedia