Opened on June 18, 2005, Seoul Forest had previously undergone a series of changes on Ttukseom (Ttuk Island). In the past the forest had been a royal hunting ground for kings and served as a military inspection facility. But, in more recent decades the area has served a wide variety of functions. Ttukseom initially served as a water-treatment facility, and later as a golf course, horse racing track, and eventually a sports park. Consisting of five parks spread over 350,000 pyeong (approximately 1.16 million ㎡) of land, Seoul Forest is an eco-friendly zone appreciated not only by the people of the city but also those visiting Seoul. Seoul Forest is rapidly developing into the premium city-park of Korea like Hyde Park in London and Central Park in New York.