Shimizuyama Castle

Shimizuyama Castle is a fortified structure on a mountainside in Tsushima composed of multiple defensive enclosures arranged along the slope. The ruins occupy a strategic location that controlled both land and water routes through the region.

Mōri Takamasa built this castle during a period of regional conflicts in the 16th century to secure his influence in the area. The construction reflects typical defensive methods of the era adapted to the local landscape.

The castle served as a strategic center for the local community and reflects how people in this region organized their defense and daily activities. The remains show evidence of the inhabitants who worked and lived within its walls during the 16th century.

The site is accessible via marked pathways that climb through forested terrain from the nearest station. The walk takes about 40 minutes and can become slippery depending on weather conditions.

The castle features unusual pit constructions with ridge-shaped chambers that developed under influence from neighboring regions. This distinctive building method is rare and shows how builders blended different construction techniques.