Cheonmasan Haneul Sanchaekro is a sea observation deck that runs along the Sanbokdoro in Cheonmasan, Busan. From here you can see the harbor connecting Namhang and Yeongdo, the old downtown of Busan, and the sea fog of Yeongdo up close. Fireworks can be seen from the spot, and the Cheonmasan Sculpture Park is under construction. Public transit is inconvenient, so access is not easy.