Old Town and Schlossinsel (palace island), on which the eponymous Köpenick Palace is located. The Katzengraben is now the main navigable branch of the Spree, transecting the old river bend north of the Old Town.

The Spree links Köpenick with lake Müggelsee and inner Berlin, and further via the Havel and Elbe rivers with the North Sea. The Oder-Spree Canal links the Dahme, at nearby Schmöckwitz, with the Oder river, at