Taking the cruise ship from Kerms, you will end up at a charming town Melk. You can enjoy a walk around the town and admiring beautiful architecture.
Melk is an Austrian town on the River Danube, west of Vienna. It’s known for the 11th-century Melk Abbey, a vast monastery built high above the town. No tour of monasteries in Austria, or Middle Europe, for that matter, would be complete without a visit to the magnificent Melk Abbey. Abbot Berthold Dietmayr and his architects Jakob Prandtauer and Joseph Munggenast left no stone unturned in their quest from 1701 to 1736 to construct a sacred palace upon the foundations of a medieval monastery.
https://www.austria.info/uk/things-to-do/cities-and-culture/architecture/melk-abbey