Cheonghaejin

The fortified complex spans across Jangdo Island, featuring ancient stone walls, wooden structures, and defensive gates from the Silla Dynasty period.

Admiral Jang Bogo established Cheonghaejin in 828 CE as a naval headquarters with 10,000 troops to protect maritime trade routes from pirate attacks.

Archaeological excavations at the site revealed millstones, pottery, and bronze vessels that demonstrate trade connections between Korea, China, and Japan.

Visitors can access the site via a wooden bridge connecting to Jangdo Island, with guided tours available at the Chang Po Go Memorial Center.

During low tide, visitors can observe 1,000 wooden fence posts measuring up to 80 centimeters in diameter along the southern shore of the island.

Location: Chang-do

Location: Wando

Inception: 828

Creator: Jang Bogo

Address: 734 Jangjwa-ri, Wando- eup , Wando-gun, Jeollanam-do

GPS coordinates: 34.36032,126.73556

Latest update: March 6, 2025 16:50