Okayama · Hiruzen Highlands
Kyukamura Hiruzen-Kogen (Hiruzen Radon Onsen)
休暇村蒜山高原（蒜山ラドン温泉）
A Kyukamura resort inn on the Hiruzen Plateau in Maniwa, Okayama. Its simple weak radioactive spring (Hiruzen Radon Onsen) fills a top-floor observation bath with panoramic views of the three Hiruzen peaks and the pastoral landscape, and day bathing is welcome.
- Price (adult)
- ¥600
- Hours
- 11:30-15:00 (last entry 14:30)
- Closed
- Tuesdays
- Access
- 1205-281 Hiruzen Kamifukuda, Maniwa, Okayama. About 10 minutes by car from Hiruzen IC on the Yonago Expressway. Free parking (100 cars). Its plateau location makes car access convenient.
- Water type
- Radon spring
- Tattoos
- Ask ahead
- Phone
- 0867-66-2501
- Official site
- qkamura.or.jp ↗
- Open in Google Maps
- Google Maps ↗
Essentials
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Why go
- A simple weak radioactive spring (Hiruzen Radon Onsen, alkaline, pH 8.2), a beauty-skin water
- A top-floor observation bath with panoramic views of the three Hiruzen peaks and the plateau pastures
- Day bathing for adults 600 yen; 11:30-15:00 (extended in winter), closed Tuesdays
About this onsen
A Kyukamura resort on the Hiruzen Plateau (about 500 m elevation) drawing the Hiruzen Radon Onsen. The spring is a simple weak radioactive spring (25.1°C, pH 8.2, alkaline), a rare natural radon spring, and from the 3rd-floor observation bath you can look out over the three Hiruzen peaks and the plateau pastures.
Good to know
Day bathing is 600 yen for adults (400 yen for ages 4 to elementary school), normally 11:30-15:00 (extended to 20:30 in winter, December to March). It is closed to day bathers on Tuesdays for bath maintenance.
Before you go
- No official tattoo policy is published — ask at reception.
- Ryokan day-use hours are limited and may be suspended in peak season — phone the same morning.
- Payment is usually by ticket machine in cash — bring coins.
- Last entry is 30–60 minutes before closing.
Features
Baths
Mood & scenery
Convenience
Amenities
✔ Verified operating: 2026-10 Operating status and rates cross-checked against the official site and onsen guides (full source notes in Japanese on the JA page)
Prices and hours change. Check official sources before visiting.
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