The river Doubs lends its name to Doubs Nature Park. Forty kilometers long, the river forms the border of the French Departement bearing the same name. To the south, the Freiberg Mountains with their typical forest and meadow landscape are part of the 378-square-meter Nature Park.
Splügen is a typical pass village with well preserved architecture, impressive palazzi and sun-browned wooden Walser houses.
5 crystal clear mountain lakes and spectacular views of the Alps of Eastern Switzerland are the highlights of the mountain walk from the Pizolhütte to Gaffia. The 5-lake walk on the Pizol is one of the real classics among mountain walks.