Berlin has many big and little Rivers.

Berlin has many big and little Rivers.
The Erpe and the Neuenhagener Mühlenfließ River has a length of 32 km long. From the Spree River, Berlin to Wegendorf.
The Fredersdorfer Mühlenfließ River has a length of 33 km. From Großer Müggelsee, Berlin to the Bötzsee, Strausberg.
The Pank River has a length of 29 km. From Spandau Canal in Wedding, Berlin to Bernau.
The Wuhle River has a length of 15.5 Km. From Spree River, Berlin to Ahrensfelde.
The Tegeler Fließ River has a length of 30 Km. From Tegel Lake to Mühlenbecker lake, Mühlenbecker Land.
The Dahme River has a length of 95 Km. From Alt-Köpenick, Berlin to Langer See, Kolberg.
The Havel River has a length of 371 Km. Havel cycle path leads from its source in Ankershagen in the Mecklenburg Lake District to its mouth in the Elbe near Gnevsdorf in the Prignitz District.
The Spree River has a length of 380 Km. Spree River rises on the Lusatian Mountains at the Czech/Germany border and it meets the Havel River in Spandau, Berlin.