Input (grade 8): The historic town lies in the center of the Berlin Urstromtal glacial valley at the confluence of the rivers Dahme and Spree. Shortly before its conflux with the Spree, the Schlossinsel lies on the Dahme, a small island with KÃ penick Castle.
Output (grade 2): It is at the meeting place of two rivers, the Dahme and Spree.