Busan Green Railway is a walking path along the old Donghae Nambu Line tracks on the coast around Songjeong Station and Cheongsapo Station. The route follows a coastal boardwalk and passes viewpoints such as Darietdol Observatory. The railway opened in 1935, closed in 2013, and became a walking path after construction finished in 2020. The path does not continue between Cheongsapo and Mipo because that section is under construction.