Information only available in German
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.
The inhabitants of areas with little precipitation on the south-facing slopes of the Valais have had to cope with aridity for centuries. Through man-made channels called suonen, they divert water from glacial streams to their fields and meadows.