The Rhine, and it's tributaries

In the last 2 years our focus was on the Rhine only.

Over 30.000 people joined us...

Now it's time to expand our reach and allow cities along the Rhine tributaries to join as well...

Select your river below!

Choose your river


The Ruhr is a river in western Germany (North Rhine-Westphalia), a right tributary (east-side) of the Rhine. Its total length is 219 km (136 mi), its average discharge is 79 m³/s (cubic metres per second) at Mülheim near its mouth.


The Wiese is a river, 57.8 kilometres long, and a right-hand tributary of the Rhine in southwest Germany and northwest Switzerland.


The Main is a river in Germany. With a length of 525 kilometres, it is the longest right tributary of the Rhine. It is also the longest river lying entirely in Germany. The largest cities along the Main are Frankfurt am Main, Offenbach am Main and Würzburg.


As one of the most attractive rivers in Germany, the Moselle is the second longest tributary of the Rhine (544km). The river has its source in France and flows through the Vosges and Lorraine. It then becomes a border river between Luxembourg and Germany. It flows into the Rhine near Koblenz, after which the Moselle flows through the Saarland and Rhineland-Palatinate. 


The river Nahe has its source on Saarland territory, flows through the southwest of Rhineland-Palatinate and, after about 112 kilometres, flows into the Rhine between Bingen and Bingerbrück. The river takes 5 tributaries with it. The idyllic Nahe landscape, characterised by forest and vines, must be protected from water pollution and bank pollution with all kinds of rubbish.