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.
In the City of Lucerne, three different sights worth seeing are next-door neighbors: the world-famous Lion's Monument, the Glacier Garden, which has a large mountain relief dating to the 18th century, and the mirror labyrinth "Alhambra" with its 90 mirrors.
A calm lake lies near the Oberalp Pass. This lake's water flows clear and fresh into the valley. The Tomasee (Lake Toma) is considered to be the source of the Rhine. And it is only here that the river that flows through four countries can still be crossed with a single step.