Heunyoul Coastal Tunnel in Busan is a tourist spot visited together with the coastal walking path. It is a place to look around the lower walking path that connects close to the tunnel and the sea. The tunnel and the lower coastal walking path are currently blocked for repair work, so visitors must go down by the stairway and come back up the way they came down. During the construction the tunnel and the coastal walking path are closed, so the opening status must be checked before visiting.