Yunoyama Onsen, Komono, Mie Prefecture
Yunoyama Onsen Green Hotel
A good day-use choice in Yunoyama if you want a large open-air bath and spring-water details. Since the July 2026 price cut, the listed facilities compare especially well with the admission cost.
Check before bathing
- Opening hours
- 10:00–19:30; last admission 18:30. Closed Fridays.
- Tattoo policy
- The facility's current first-party information does not confirm a tattoo policy. Check with the hotel before visiting.
Spring & water temperature
- Spring-source temperature
- Official spring table: No. 2, 39.4°C; No. 3, 45.2°C; No. 4, 30.7°C. These source figures are not bathing-pool temperatures.
- Bathing temperature
- Not published.
- Spring source
- The hotel says it uses two of its own springs. Its spring table lists Nos. 2, 3 and 4, but does not identify which two are used in the baths.
- Spring classification
- Alkaline simple hot spring.
- pH
- No. 2: 8.5; No. 3: 8.6; No. 4: 8.4.
- Flow rate
- No. 2: 160 L/min; No. 3: 550 L/min; No. 4: 83 L/min.
- Water handling
- The current hotel page says its two in-house springs are used without adding water, as 100% spring water with overflow. It does not identify which pair of the three springs in its table supplies each bath, so no pairing is inferred.
Bathing indications
The hotel lists general bathing indications including rheumatoid arthritis, lower-back pain, neuralgia, sensitivity to cold, fatigue and general health maintenance. These are not treatment guarantees.
The hotel says its current spring water is not diluted and is used source-flowing with overflow. Heating and disinfection conditions for each bath are not published.
From 1 July 2026, adult day admission is ¥700 on weekdays and ¥800 on weekends and public holidays. The hotel describes using two springs, while its table lists three; the two used in the baths are not identified in the current text.
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.
