Treptow-Köpenick is the ninth district of Berlin, formed by merging former Treptow and Köpenick districts and is on the outskirts of Berlin. It is the largest district by area with the lowest population density. It is the greenest and water richest district of Berlin with a long history and tradition. Köpenick is an old town with its castle, lakes, forests and known for the story of The Captain of Köpenick, while Treptow is a residential area with big parks and beautiful views of River Spree. This was once the home neighbourhood for expatriate American, international music and film star Dean Reed.
One of the largest areas of Berlin that do not have U-Bahn service, while it has extensive Tram Network and a bit of S-Bahn lines. Tram : Line 68 is perhaps the most picturesque line also known as "the most beloved tram line in Germany" that has more scenery than people during off-season. Line 68 can be best accessed at the Berlin-Grünau S-Bahn station. Bicycle : The German Bicycle Route D3 runs directly through this district and runs through Treptower Park, the old town of Köpenick and near the southern side of Müggelsee.
S-Bahn : Treptower Park is the most important station of Treptow and is best accessed by S-Bahn lines S41, S42, S8, S85 and S9. To Access Köpenick, either take S47 to Spindlersfeld or S3 to Köpenick. One can use S9 and S45 to reach Treptow-Köpenick area from Schönefeld Airport.