Seoul Hanyangdoseong Trail Course 3 (Namsan) is a historic walking route that runs from DDP through Namsan Seoul Tower to Sungnyemun. The path climbs Namsan along the traces of the old city wall, so you can see both the Seoul fortress remains and the city center. This course passes DDP and Dongguk University on its way to Namsan, following the line where the wall once stood. On sections where the wall has been torn down, floor markers for the Hanyangdoseong Sunseong-gil are in place.