Shin Harada Onsen / Yujin no Yu, located in Ibara, Okayama Prefecture, offers thermal water at 40°C. The facility includes an indoor bath, an outdoor rotenburo, and a sauna.
Insider tip — Shin Harada Onsen Yujin no Yu is a neighborhood bathhouse in Ibara that offers clean, lightly mineralized thermal waters to the rural Okayama community. The baths are unpretentious and affordable, making them ideal for budget travelers passing through on the San-yo coastal route. The steam room is a popular addition for those seeking extra muscle relief.