A raised highway was torn down and cement roads removed in this US$384-million urban renewal project to ‘daylight’ this stream. With its landscaped walkways, footbridges, waterfalls and a variety of public artworks, such as the enormous pink-and-blue shell entitled Spring in Cheong-gye Plaza, the revitalised stream is a hit with Seoulites who come to escape the urban hubbub and, in summer, dangle their feet in the water.

The clear water that flows for 5.8km down this beautifully landscaped oasis is actually pumped in at great expense from elsewhere, inciting the ire of environmentalists.