Information only available in German
At a length of 22.6 kilometers and with a surface of 81.69 square kilometers, the Great Aletsch Glacier is the longest and biggest glacier in the Alps.
The crystal cleft at Gerstenegg displays the fascinating world of crystals in their natural form. The cavern is situatet about 1.5 kilometers inside the Grimsel Massif. It was discovered in 1974 during construction work for a hydropower station and now constitutes one of the main attractions on the guided tour of the power station.