We welcome you in the historic 100 years old “Café” where you have a pancake + coffee. We tell you the story of an amazing project - a planned hydro power plant in the mountains which was never finished- that started up 100 years ago. We take you on a guided walk in a large underground complex and go deep into the mountain, enter shafts and tunnels on different layers. During this exciting excursion, you get to hear the fascinating story of this abandoned and mysterious industrial adventure. Included - Guide. - Torches. - Helmets. Difficulty and Safety This tour is intended for all age groups. No special requirements or experience are expected. Young children from age 5 may participate, if accompanied by parents. Clothing & Equipment Recommended to wear wind/rainproof/warm clothing and boots suitable for shallow pools.