The water channels lining the street were originally designed for fire prevention and irrigation for the samurai residences.
The koi carp in the channels are maintained by the local community and are considered a symbol of the town's prosperity.
The name 'Tonomachi' literally translates to 'Lord's Street,' reflecting its historical status as the residential district for high-ranking samurai serving the Tsuwano domain.
The street is home to the Tsuwano Town Hall, which occupies a building formerly used by the local feudal government.
Many irises are planted along the water channels, which bloom annually in early summer.
Tonomachi is a well-preserved historic street in Tsuwano, often referred to as the Little Kyoto of the San'in region. The street is distinguished by its stone walls, traditional white-walled samurai residences, and water channels filled with thousands of vibrant koi carp. It serves as the primary corridor for accessing local cultural landmarks, including former feudal offices and administrative buildings. The architectural style dates back to the Edo period, reflecting the castle town layout of the Kamei clan. Many of the preserved buildings have been repurposed into small museums, galleries, and cafes while retaining their original exteriors. The area is maintained for its cultural heritage significance within Shimane Prefecture.
At the intersection where the stone walls meet the white-walled buildings with the koi channels in the foreground.
Bring a small bag of fish food, often sold at local shops, to feed the koi in the channels.
Wear comfortable walking shoes as the street is paved with historic stones that can be uneven.
Visit the small side alleys branching off the main street to find hidden artisan workshops.
Do not attempt to catch or touch the koi carp in the water channels.
Maintain a quiet tone in residential areas and do not enter private gardens or gated properties.
