The Main (pronounced in German like the English word "mine") is a river in Germany, 524 km in length, and one of the bigger tributaries of the Rhine river. Its average discharge at Frankfurt East Harbour is 190 cubic metres/second. It flows through the Bundesländer (states) of Bavaria, Hesse and 25 Kilometers along the border of Bavaria with Baden-Württemberg. The biggest city on the Main is Frankfurt, others are Bayreuth, Bamberg, Würzburg, Hanau and Offenbach. The mid Main valley is characterised by many vineyards. It is part of the region of Franken. Boats on the Main can use the Rhine-Main-Danube Canal to go to Eastern Europe. 