Hiraiso Onsen
TypeNatural Hot Spring
A rich private spring that bubbles up continuously from 1,300 meters underground on the property. The sodium sulfate-chloride spring water has an exceptionally soft feel and provides abundant moisture. It is used in the vast open-air rock bath of about 100 tsubo, laid with famous stones from across Hokkaido, as well as in the large Oriental-style circular indoor bath scented with natural Japanese cypress. After bathing, your body stays warm from the core and cool-down chills are said to be hard to catch, making it a renowned hot spring.

