One of the largest hydroelectric power stations in Europe. The main hall is located 700 metres inside the mountain. It is 200 m long, 20 m wide and measures 40 m in height. Guided tours 15/6-15/8 at 10.00, 12.00 and 14.00. Guided tours all-year-round for groups. The 1-hour tour includes a film about the construction of the power station and a guided tour of the main hall.