Okayama · Yubara Onsen
Yubara Onsen Yumoto Onsenkan
湯原温泉 湯本温泉館
A municipal day bath in the middle of the Yubara Onsen village in northern Okayama, a few minutes' walk from the famous riverside open-air 'Sunayu'. Yubara has a thousand-year history and copious water; this is its source bath, and the pH 9.3 alkaline simple spring is a slippery 'beauty water'. The three-storey building has souvenirs on the ground floor and baths on the first: for each sex an indoor bath, jacuzzi and sauna, plus a barrier-free bathroom usable by elderly and wheelchair guests, which can also be hired as a family bath (¥3,000 per hour for up to three). There is no view, but travellers value it as the place to wash and warm up properly after the mixed Sunayu. Adults ¥800, children ¥400; open 10:00–21:00 (last entry 20:30), closed Wednesdays. A tatami rest room and relaxation corner are provided. About 5 minutes by car from Yubara IC on the Yonago Expressway, or 40 minutes by bus for Hiruzen Kōgen from JR Chūgoku-Katsuyama Station to 'Sayama' then 5 minutes on foot.
- Price (adult)
- ¥800
- Hours
- 10:00–21:00
- Closed
- Wed
- Access
- About 5 min by car from Yubara IC (Yonago Expressway); Maniwa community bus for Hiruzen Kōgen from JR Chūgoku-Katsuyama Station, about 40 min to 'Sayama' then 5 min on foot
- Water type
- Alkaline simple
- Tattoos
- Ask ahead
- Phone
- 0867-62-2039
- Official site
- www.maniwa.or.jp/web/?c=spot-2&pk=3326 ↗
- Open in Google Maps
- Google Maps ↗
Essentials
Stay in this onsen town
Compare and book stays in Yubara Onsen. Day bathing itself needs no booking.
Opens partner booking site (affiliate)
Why go
- Yubara's source bath (pH 9.3), minutes from Sunayu
- Wash and warm up after the riverside bath
- ¥800; barrier-free room as a family bath
Before you go
- No official tattoo policy is published — ask at reception.
- Payment is usually by ticket machine in cash — bring coins.
- Last entry is 30–60 minutes before closing.
Features
Baths
Sauna & wellness
Rules & private
Price
Convenience
Amenities
✔ Verified operating: 2026-09 真庭観光WEB（中学生以上800円 小学生400円・10–21時 受付20:30・水曜休）／岡山観光WEB（旧料金600円）
Prices and hours change. Check official sources before visiting.
More in this area
Yubara Onsen Sunayu
A natural open-air bath on the Asahi River gravel bed right below Yubara Dam, where water bubbles up through the riverbed itself — ranked the 'western grand champion' of Japan's rotenburo. Three pools at different temperatures; mixed, free and open 24 hours. Only a simple changing hut, so women are advised to wear a bathing garment (sold and rented in town). Closed Wednesday mornings for cleaning. Photography strictly forbidden.
Yunogo Onsen Sagi Onsen-kan
The source bath of Yunogo Onsen, where legend says the monk Ennin found an egret healing its wounds some 1,200 years ago. One of the three famed Mimasaka hot springs, an hour by car from Okayama. The town-run bathhouse charges ¥800 for indoor and open-air baths across two bathing wings linked by a moving walkway, alternating daily. Open 8:00–21:00; the 'all-day rest' plan lets you come and go until closing. Bring your own food.
Okutsu Onsen Hanabijin-no-Sato
A town-run day spa at Okutsu Onsen, one of the three Mimasaka hot springs and famous for the autumn colours of Okutsu Gorge. The airy, high-ceilinged main bath holds pH 9-plus alkaline 'beauty water', with a rotenburo, family baths and sauna. ¥880, 10:00–19:00, closed Thursdays. The gorge trail is within walking distance, so it fills up after leaf-viewing in autumn. Forty minutes by car from Tsuyama.