This high-altitude trail is a busy access route via the Bistinen Pass to the world-renowned Simplon Pass. It crosses the wild and romantic Nanz Valley. From Giw head towards the Gebidem Pass from where there is a magnificent view of the Valais and Bernese Alps. Then follow the natural road towards Mättwe in the Nanz Valley before climbing to the Bistinen Pass (2400m). Descend in the direction of the Simplon Pass to finish the tour.