Touch upon the region's history at the ruins of a castle that once governed Aki
About this spot
A park built on the ruins of what is said to have been the residence of a feudal lord who once governed the Aki region, conveying some of the ruins to the present day. A historical site cherished by locals, where you can feel the history of Aki Town, which developed as a castle town. Since it's maintained as a park, the family can easily stop by and enjoy a leisurely walk. Knowing this region's history before heading to the port town makes the evening River Boat Festival feel even more meaningful.
Fireworks details
Name: 川舟祭
Date & time: 8/9 (Sun) 18:00–21:00
Venue: 国東市安岐町・安岐港周辺
国東市安岐町の安岎港周辺を会場に、2026年8月9日18時から21時まで開催される、地域で受け継がれてきた夏の伝統行事です。港に舟の明かりが浮かび、静かな水面にその灯りが映り込む様子は、都市部の華やかな祭りとは違う、しっとりとした情緒を感じさせてくれます。国東半島の漁港町ならではの穏やかな空気の中で、地域の人々が大切に守ってきた祭りの雰囲気を家族で味わえる貴重な機会です。
Tips
港周辺は夜になると足元が見えにくくなるため、懐中電灯やスマートフォンのライトがあると安心です。夜は海風で涼しくなることがあるため、薄手の羽織ものを準備しておきましょう。
Tips
Some of the ruins have unstable footing, so walking shoes are recommended. In summer, there are areas with little shade, so don't forget to hydrate.
Best time to visit
About 45 minutes. The calm afternoon hours are ideal for a leisurely stroll.
Access & map
873-0231 Oita Prefecture, Kunisaki City, Aki Town, Shimohara 3106
Model course featuring this spot
2026 River Boat Festival (Kawafune Matsuri) Full-Day Immersion Course
Oita
Explore features & model courses
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