Ethno corner „Grudonjske vodenice“ is located in the settlement Gradasnica (2 km from the center), on the small river. It has two mills, which are more than two centuries old. Larger mill was turned into an ethno kitchen, where each visitor can prepare various dishes from this area, according to traditional recipes, with the help of instructors of ethnological workshops „Etnos“. Other, smaller mill will be converted into traditional crafts workshop. In the yard, there is a small amphitheater, where the programs related to the history and tradition of Sokobanja’s area take place.