Then something amazing happened.Over forty years later,city leaders decided to return the river.they wanted to add more green space to Seoul.They removed the highway and made a new park.The park is 5.8 kilometers long,and is a popular place for office workers,students,and tourists.Visitors can walk,have a picnic,run,look up at the skyscrapers,or just sit back and watch the birds and fish.There are flowers and plenty of green spaces.There are several fountains,and many sculptures line the river.