The Gradina visitor center is located in a panoramic position above Lake Doberdò and can be quickly reached from the town of the same name. The structure was created by renovating the buildings of a former quarry with funding from the European Regional Development Fund Objective 2. The center features a Natural History Museum, a restaurant, a karst hall, and accommodation with twenty beds. The accommodation at the Gradina visitor center consists of seven rooms totaling twenty beds, divided into four double rooms with private bathrooms and three quadruple rooms with shared bathrooms in the corridor. There is also a kitchen for guest use and a lounge with a panoramic view of the Doberdò and Pietrarossa Lakes Nature Reserve.