The Wilderness ˝Głębokie Doły” located to the north of Rybnik, between Ochojec, a district of Rybnik, and the village of Książenice, in terms of wildlife features is regarded by specialists as one of the most interesting places in this part of Upper Silesia. Because there is a 100-hectare area of the natural forest of the primeval Silesian Primeval Forest. One can admire 150-year-old, stately beech trees and numerous protected species of plants and animals.