Tangeum Lake is an artificial lake. It is located between Chungju Dam and Jojung Dam. It is an ideal rowing lake as the velocity of the water flow can be controlled by the two dams floodgates. The 2007 Asia Rowing Championships were held on Tangeum Lake where 556 competitors from 20 countries participated.

Tangeum Lake will be host to the 2012 Asian Olympic Qualification Regatta which will take place on 26 – 29 April 2012.