Gyeongsang Jwasuyeong Fortress Site

Gyeongsang Jwasuyeong Fortress Site marks where the commanding headquarters of Joseon's Left Gyeongsang Naval Command (Jwasuyeong) once stood. As the southern coast repeatedly suffered raids by Japanese pirates (waegu), Joseon split coastal defense of the southeast between this base in Busan and a counterpart base, Usuyeong, in Tongyeong.

The naval base originally sat in what is now Gamman-dong in Nam-gu, moved to Gaeunpo in Ulsan under King Taejong, then relocated to its final site — today's Suyeong-dong — just before the Imjin War. The wall standing today was rebuilt in 1692 under Naval Commander Mun Hui-seong, spanning roughly 2,785m with walls about 4m high and four gates: Yeongilmun, Hosomun, Jujakmun, and Gongjinmun. Drums mounted on the gate towers were struck at set hours to signal the opening and closing of the gates.

The defensive complex once included three wells, four drainage outlets, and additional fortifications such as barbicans and bastions, but most of it was destroyed during the Japanese colonial period. It was designated Busan Monument No. 8 in 1972, and renamed to its current title in 2014.