Nagayu Onsen, Taketa, Oita
Lamune Onsen-kan
A carbonated-spring bath known for its cool 32°C outdoor pool alongside a warmer 42°C indoor bath. Both are source-flowing; the outdoor pool can feel cold in winter. The current tattoo policy is unconfirmed.
Check before bathing
- Opening hours
- 10:00–22:00.
- Tattoo policy
- No tattoo policy was confirmed on the current main facility pages checked September 8, 2026. Ask the facility before visiting.
Spring & water temperature
- Spring-source temperature
- 32°C and 42°C.
- Bathing temperature
- Public outdoor bath about 32°C; indoor bath about 42°C. Family baths also have pools at both temperatures.
- Spring source
- The 32°C Lamune source and a separate 42°C cloudy-water source.
- Spring classification
- Carbonated spring and bicarbonate spring.
- pH
- Not published.
- Flow rate
- Not published.
- Water handling
- The operator confirms that both the 32°C outdoor bath and 42°C indoor bath use source-flowing water. Family baths also offer both temperatures.
The 32°C outdoor pool is deliberately cool and may feel cold in winter; lower water temperature is not automatically safer for every health condition.
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.
