Really large rock overhang, the robber's cave.
However, at the bottom of the short ascent there is now a sign with "Danger to life from falling rocks. Entry prohibited"
Sinkholes are funnel-shaped depressions in the ground created by the collapse of the overburden into subterranean cavities. The Waltershöhle is one such sinkhole. The shafts were formed when seepage water …