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Postbus in the foreground on mountain roads. In the background, a mountain landscape. “Du-Da-Do” lettering integrated into the image.

On the steep sections of around 120 routes in mountain regions, postbuses are equipped with the popular three-tone horn. We have selected some of the most beautiful routes for you. Discover beautiful landscapes aboard the postbus and enjoy the unmistakable post horn, which has been around for exactly 100 years.

For operational reasons, postbuses without a post horn sometimes travel on these routes too, thank you for your understanding!

You can find more information on the anniversary on the page 100 years of the post horn.