Alpe Adria Bike Tour. In one week from Salzburg to Grado. The route leads from Salzburg City of Mozart through the Salzach and Gastein valleys to Böckstein. From here it's an 11-minute train ride to Mallnitz before hopping back on the bike and pedaling through Carinthia to Spittal a. D. Drau, Villach and Arnoldstein on the Austrian-Italian border.