Tancheon
 Tancheon a tributary of Seoul's Han River is a stream beginning in the city of Yongin in Gyeonggi-do and flowing through Seongnam and then between the districts of Songpa-gu and Gangnam-gu in Seoul before entering flowing into the Han River. It has a total length of 35.6 kilometres.Winding through the district of Bundang the stream is one of the widely recognised symbols of the borough. All streams in the Bundang area flow towards the Tancheon.