Derborence Lake was created as a result of a massive landslide near Sion in the 18th century. The eponymous valley is a nature reserve with a pristine beauty that fascinates geologists, botanists and nature lovers alike.
Trient Ravine was carved into the rock of the Mont Blanc massif by the eponymous wild mountain stream. The 200 meter deep ravine is fascinating for climbers and nature lovers. A 114 meter high waterfall makes the experience all the more interesting.