The Songcheon-ri, Unsu-ri, Ipseok-ri, Susan-ri, and Bigeum-ri areas in Sudong-myeon, Namyangju City boast picturesque scenery with refreshing water flowing everywhere, for which the region is also widely known as “Mulgolan,” which means “inside water valley.” Opened in 1983, the park is surrounded by the mountains of Jugeumsan, Seorisan, and Chungnyeongsan. It is a great summer vacation spot with lush forests and clear valleys. The park is also abundant with many varieties of mountain vegetables and fruits including mushrooms, a type of mountain herb called deodeok, balloon flower roots, fatsia shoots, honey, chestnuts, and pine nuts.