Site of Shimizuyama Castle
castle
清水山城跡
Shimizuyama Castle was built along a 500-meter mountain ridge above Izuhara on Tsushima in the late sixteenth century, intended to overlook and reinforce Kaneishi Castle below during Toyotomi Hideyoshi's preparations for the Korean invasion. The fortress had three enclosures on flattened terraces connected by a ridge corridor. The first and third enclosures are well preserved, with ruins of entrances and stone ramparts still clearly visible. A hiking trail climbs through the site to the third enclosure at around 100 meters above sea level, where there is a view over Izuhara town and its port. The castle was decommissioned in the early 1600s as part of the Tokugawa shogunate's diplomatic reset with Korea.
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