The Danube cycle route from Passau to Vienna passes castles and monasteries through Upper and Lower Austria. Stops can include Melk Abbey and the UNESCO World Heritage region of Wachau. Choose daily stages around the places you want to explore.
Bridges and ferries let riders switch banks. In the Wachau, that opens up several route choices; the north-bank stage from Emmersdorf to Krems, for example, is about 34 km long. Check ferry operating times and current diversions before setting off.
Riverside cycling illustration; no specific location on the Danube route is depicted.
Plan the return early: trains from Vienna to Passau have limited bicycle spaces that require reservations. Booking one lets you coordinate the end of your ride with a particular departure.