Bau-gil Course 4, named "Sacheon Dukbang-gil," is a scenic route that begins at the foot of the Baekdudaegan Mountain Range and leads toward the blue East Sea. The trail passes through the Kalopanax (Gaedureup) fields of Haesari Village and follows the riverside dyke. A highlight of the course is Yongyeon Valley, a cozy and quiet spot loved by vacationers. It is a unique path where you can watch salmon swimming upstream in the clear river below the wildflower-lined dyke.

This 18.3 km trail starts from the "Tomb of King Myeongju" and ends at "Sacheonjin-ri Beach Park." It features some of the most beautiful and quaint rural landscapes in Korea. After passing through the charming Haesari Village, the path follows 12 km of well-preserved riverside dykes. Flowers bloom in spring, lush greenery fills the summer, and in autumn, visitors can witness the rare sight of salmon returning to their birthplace.

Haesari Village is famous for being the top producer of Kalopanax (Gaedureup) shoots in Korea; a festival is held every April to celebrate their bitter yet refined taste. At the Sacheon Moraene Happiness Center, you can visit the "Suspicious Magic School" for performances and art experiences. Additionally, in Hapyeong Village, a traditional "Bridge Stepping" ceremony is held on the 6th day of the 2nd lunar month to pray for a good harvest.