Anyone visiting Passau for the first time will get an impression of why the city at the Three Rivers Corner is also called the Venice of Bavaria. The cityscape is defined by the confluence of the three rivers Danube, Inn and Ilz – a geographical phenomenon that is unique in the world. Nowhere else do rivers come from three different points of the compass, only to flow on united in a fourth direction. The water colouring of the rivers is also a special eye-catcher. While the water from the Inn is green, the water from the Danube is brown and the water from the Ilz is black. At the confluence, all three colours can be observed over a certain distance.