Koga

Built around a castle town and post station on the Nikkō Kaidō, Koga grew into a regional city on the Watarase River in western Ibaraki Prefecture. During the Edo period, it was the seat of the Koga Domain, while the Nikkō Kaidō carried travellers between Edo and the Tōshō-gū shrine complex at Nikkō. Koga Castle, once close to the river, has disappeared, yet its legacy is documented at the Koga History Museum. The city lies on the Kantō Plain near the Tone River system, with rail connections towards Tokyo and neighbouring Tochigi. See how Koga belongs to western Ibaraki and the wider Kantō Plain by browsing webcams nearby.

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