The Cassin Route on the Southwest Face is the famous historic line on Pizzo Badile and a major alpine classic. It is a very serious and sustained climb, combining steep rock climbing with exposed, committing mountain terrain. The route is known for its length, difficulty, and the need for solid route-finding and efficient movement. It is far more demanding than the normal route and is generally attempted by experienced alpinists only. The face can be affected by rockfall and rapidly changing weather. This route is extensively documented and remains one of the most celebrated climbs in the Alps.