This Natural Park lies north-eastward of Chotebor near the Bilek village. The valley is created by the canyon of the Doubrava river and part of the Kamenny potok valley with many geomorphologic formations and wood union. An educational trail has been set here. The trail presents many significant geomorphologic effects, typical plants and animals but a negative human influence as well. On the area of 284 square kilometres there are more than 1200 higher plants, 227 vertebrates, 22 kinds of regular migrants. The educational trail is 4, 5 kilometres long and rises about 83 metres. It goes along a path together with the red tourist path on the other bank. The river Doubrava is one of the most striking lifeless factors. The river has created a stone river-bed full of stone towers and huge pots, with a waterfall and a stone sea. This dramatic stone formation is an often mountain-climbing target.