Yes, you can have your trail running adventure in the Aletsch Arena in winter, too. Blanketed entirely in white, the region already possesses a very special charm in winter, which makes winter trail running in the Aletsch Arena all the more special. 72 kilometres of perfectly groomed winter hiking trails await you. Another advantage: running at over 2000m above sea level is said to have a more intense training effect than jogging in the valley.