If you are looking for a short and easy hike with a touch of history, you should visit the Vaferdeau tunnel. This tunnel was built in 1916 by the Swiss army as a defensive measure during the First World War. It is approximately 200 meters long and has several openings which offer views of the valley and the Rochers du Midi, a popular climbing site. You can walk through the tunnel and enjoy the coolness and darkness there.