The Breitwangflue at Kandersteg in Switzerland. On the left: the cave with Flying Cirus and Ritter der Kokosnuß; in the centre: Mach 3 (IV M9, 150m, Robert Jasper, Markus Stofer 2003): on the right: Tränen der Eisprinzessin.

© visualimpact.ch | Hans Hornberger