Verbier is known for its off-piste and itinerary runs. Amongst these are popular mogul fields Tortin, Gentianes, Mont Fort and Plan du Fou as well as more advanced itineraries Vallon D'Arbi and Mont Gelé (which are often closed). Notable off-piste runs are the Backside of Mont Fort, Bec des Etagnes, Stairway to Heaven, Highway, Marlenaz, Croix de Coeur, Bacombe, Col des Mines, Creblets, Couloir de la Banane, Col de la Mouche, The Rocky Garden, The Hidden Valley (down to Auddes-sur-Riddes), Couloir des Dix, Col de la Banane, and the less accessible Bec des Rosses, annual host for the finals of the Freeride World Tour. Off-piste skiing can be dangerous, and sometimes lethal, due to the risk of avalanches, hidden obstacles, crevices, extremely steep runs, and other hazards. In the 2012-13 season, a skier was killed by an avalanche on the Col de la Mouche and two others died at the Bec des Etagnes.