This App is about the historic Ludwig-Danube-Main Canal in Germany. It once connected the rivers Danube and Main between Kelheim and Bamberg.
The App shows a total of about 150 photos of all 67 still existing locks of the old canal (from originally 100). The position of these locks is shown on a map. In addition it displays a bike path from Kelheim towards Nuremberg. This bike path has many very beautiful sections and passes all 61 locks on this segment and several of the other relicts. The App can be set up to sound a signal if the current position approaches a lock or other remain. To display the map itself the device needs to be online. But current position in relation to bike path, locks and other remains are also shown in offline mode.
The App has some short paragraphs about the history of the canal and about what is left today. In addition it does present a few facts about the successor of this canal, the Main-Danube Canal.