Shimonita Onsen Gunma

Shimonita, in the southwestern Gunma Prefecture highlands bordering Nagano and Saitama, is celebrated throughout Japan for its Shimonita negi — a traditional thick green onion variety with exceptional sweetness and robust flavour, cultivated in the volcanic soil of the Kanra River valley for over four hundred years and now designated as a traditional Gunma agricultural product of outstanding culinary heritage. Shimonita Onsen Gunma draws on sodium and bicarbonate thermal waters from the geothermal resources of the western Gunma volcanic zone, offering restorative baths in a highland agricultural community where the famous green onion cultivation, the traditional mountain miso and konnyaku food culture, and the spectacular Akagi-Haruna-Myogi volcanic highland scenery create a distinctively flavourful and scenic spa setting. The Shimonita negi harvest season, the Myogi Mountain's extraordinary craggy volcanic rock formations rising above the valley, and the traditional Gunma konnyaku (konjac) yam cultivation that has made western Gunma the national centre of this distinctive traditional ingredient create a richly agricultural and scenic spa destination in the Gunma highlands.