Korea Travel Guide #4 Seoul Forest is an urban park located in Seongsu-dong, Seongdong-gu, Seoul, South Korea. It was opened to the public on May 18, 2005 and has become one of the most popular parks in Seoul due to its beautiful scenery and various facilities. The park covers an area of approximately 1,015,000 square meters and includes a large central lawn, a greenhouse, a children's playgroun..