Cheonghaejin (Jangdo Island), Wando

Located on Jangdo Island off the coast of Wando, South Jeolla Province, this is the site that served as Jang Bogo's base for maritime trade. Jang Bogo established Cheonghaejin here, suppressed pirates, and dominated the sea routes connecting Silla, Tang China, and Japan, earning him the title of 'King of the Sea.' Excavations have confirmed traces of wooden palisades and building foundations from that era. This place conveys the story of a hero of Korean maritime history and the golden age of sea trade.