These are excellent cycling guides with detailed maps giving traffic information, route length, road surface, tourist attractions and other very useful information.

From its headwaters in the Black Forest of south-western Germany, the Danube flows through some of the most beautiful landscapes in Europe. Pristine flood-plains, picturesque villages and small towns, and a wealth of cultural landmarks line the river as it begins its long march to the distant Black Sea.
From Donaueschingen to Passau: Length 595 km.