Sennes is the alpine tundra/mountain opposite Fanes and can be reached from the Pederü refuge. The initial section of the trail is steep, but then the slope becomes more gentle. From the Senes refuge there is an easy marked trail up to the summit of Monte Sella di Sennes 2,787 - from here you can descend to Lè dla Creda via the Riciogogn pass and the Ciastlins valley.
Sennes is also a part of the World Natural Heritage recognised by UNESCO and it enchants hikers with its natural beauty (hillocks, edelweiss, eagles, ...)