Offer experiences which give a new take on encountering nature and history in Hardanger. Tysso Via Ferrata – in the footsteps of the navvy. A climb along the pipelines from the Norwegian Museum of Hydro Power and Industry, 4-6 hours. Himmelstigen ("the stairway to heaven") to Trolltunga, including bicycling, climbing and hiking to the impressive mountain formations, 8-10 hours. Min. 4 persons.