Salzburg old town + The Original Sound of Music Tour with Salzburg Panorama Tours
Linz is the river gateway to Salzburg, and the bucket-list version pairs Mozart's UNESCO old town with the genuine film-location tour that invented the genre in 1962. You stand in the Mirabell Gardens where the 'Do-Re-Mi' steps were filmed, glide past Leopoldskron and Hellbrunn's gazebo, and roll into the Salzkammergut lakes the opening credits made famous. Doing it from a Danube ship is a rare two-hour-each-way reach that makes Salzburg feel earned.