One of the most important touristic attractions is the Bernina Line (Trenino Rosso) of the Rhaetian Railway. It links the town of Tirano in the Valtellina via the Bernina Pass with St. Moritz in Graubünden, Switzerland. The mountains of the Valtellina offer various possibilities for sport activities. Skiing and winter sports in Bormio, Aprica or Livigno. Hiking and Biking in the same locations and especially in the secondary valleys. The Val Masino is very famous for rock climbing.