Oyabu Onsen is a three-story wooden building that’s a Taisho Era cultural property. It’s located on the bank of a mountain stream up a tributary of the Hijikawa River. As a simple alkaline hot spring that’s colorless, odorless, and transparent, hot spring enthusiasts have flocked here since ancient times for that onsen water that leaves your skin smooth, silky, and glowing. Take a picture where photos are permitted, and finally put your camera down to relax and enjoy a delightful soak.