対馬海峡
The Seomjin River is a river in South Korea. It drains southeastern Jeollabuk-do as well as eastern Jeollanam-do and western Gyeongsangnam-do provinces, and flows into the Korea Strait. The Seomjin rises from Palgongsan and flows for 212.3 kilometers before reaching its final destination in Gwangyang, where it enters Gwangyang Bay.