Aichi Chiryu Onsen

Chiryu, in the central Aichi Prefecture on the historic Tokaido and Yahagi River plain, is a small castle town historically significant as a major post station (shukuba) on both the Tokaido and Misawa highways, whose traditional iris garden festival — the Chiryujuku Iris Festival held at Nagami Castle ruins — creates one of Japan's most beloved and scenic June flower displays above the ancient castle moat. Aichi Chiryu Onsen draws on sodium and bicarbonate thermal waters from the geological resources of the central Aichi basin, providing restorative baths in a post-town heritage city whose traditional Tokaido inn culture, the spectacular iris moat festival, and the position on the Meitetsu Nagoya Line corridor create an appealingly historical and seasonally vibrant spa setting in central Aichi Prefecture. The Chiryujuku Iris Festival in June when the ancient castle moat fills with purple and white iris blooms, the reconstructed Nagami Castle and historic post-town streetscape, and the traditional Chiryu Anjo fruit cultivation heritage of the Yahagi plain make Chiryu a beautifully seasonal and historically layered spa destination in central Aichi.