The local author C. F. Ramuz wrote about this dramatic event which took place in 1714. It was also made into a film, shot on location, of course. In the 300 years that have passed since the disaster, the area has been transformed into a natural forest that is protected by its sheer inaccessibility. Trees grew in between the great limestone blocks, and thanks to surveillance in and around the area, a rare Swiss virgin forest has now occupied the area. Derborence is a rugged paradise made for ecotourism.

How to get there:
Drive or take public transport from Sion to Derborence.

• www.derborence.ch