Ōtsuchi Castle

Ōtsuchi Castle is a hill castle located at 140 meters elevation between the Otsuchi River and Kozuchi River, commanding views of the town center and Otsuchi Bay. The central area contains a platform approximately 30 meters across, while the eastern section extends about 100 meters and includes multiple defensive zones.

The fortress was built in the 14th century by the Otsuchi clan and withstood a major siege by the Nanbu army in 1437, during which military leader Moriyuki Nanbu died. These events demonstrate its role as a key strategic point during medieval conflicts in the region.

The castle rulers maintained a tradition of sending premium salted salmon to Edo, a product that gained recognition throughout southern Japan for its distinct preparation method. This trade good became an important symbol of local identity and economic ties to the capital.

The castle site offers good views from elevated ground, so visitors should wear sturdy shoes and allow time to explore the different levels. Access is on foot across the terrain, and it is wise to check conditions beforehand, especially during wet weather.

The castle grounds offer views of Ōtsuchi town's reconstruction following the 2011 earthquake, showing how this historical site has witnessed change across many centuries. This connects medieval history with the community's visible resilience in the modern era.