Yunotsu Onsen, Oda, Shimane Prefecture
Yunotsu Onsen Yakushiyu
A good first Yunotsu bath if you want a source-flowing soak in a historic building, with a free upstairs rest area and a rooftop view over the town. The water runs hot, and Tuesday is now the regular closing day.
Check before bathing
- Opening hours
- Adults ¥600; children ¥300. Opens at 09:00 daily. From 2026-09-08, closed Tuesdays except on specified traditional event days. Private bath: ¥1,000 for adults and ¥500 for children for 40 minutes; a separate-building private bath costs ¥1,600 and ¥800 respectively.
- Tattoo policy
- No current first-party tattoo rule was confirmed; ask the facility before visiting if relevant.
Spring & water temperature
- Spring-source temperature
- 44.4°C in the official analysis dated 2021-12-14; the operator's general description also rounds it to about 46°C.
- Bathing temperature
- About 45–46°C near the spring outlet and about 42°C near the entrance handrail; the whole pool is not one fixed temperature.
- Spring source
- Yakushiyu Onsen.
- Spring classification
- Sodium chloride spring; low-salinity, neutral and hot spring.
- pH
- 6.3 on site and 6.4 in the laboratory analysis.
- Flow rate
- Natural outflow; the 2021 analysis lists the measured flow rate as unavailable.
- Water handling
- The operator describes the spring as naturally flowing and 100% source-flowing, without artificial processing. The analysis sheet does not itemize disinfection equipment, so no further treatment claim is made.
- Analysis date
- 2021
The analysis dates to 2021, not 2026. If you are not used to hot baths, the operator recommends a 2–3-minute soak followed by a rest, then repeating as comfortable; children should soak for less time.
How to read a bath profile
Spring-source temperature and actual bathing temperature are kept separate. Each score is shown independently for comparison rather than collapsed into one overall score.
