Nishimachi, Naha, Okinawa Prefecture
Uminchu-no-Yu, Loisir Hotel Naha
A better fit than Shimanchu-no-Yu if you prefer a quieter spa and sauna experience over pool access, while using the same Miegusuku spring in Naha.
Check before bathing
- Opening hours
- The facility is open 07:00–23:00, but visitor reception is 09:00–17:00. Men's facilities were scheduled for maintenance 12:00–13:00 and women's facilities 13:00–14:00 on 9 September 2026; those dates have passed, so check for newer notices.
- Tattoo policy
- The current first-party information reviewed does not clearly confirm a tattoo policy. Ask the hotel before visiting.
Spring & water temperature
- Spring-source temperature
- 40.9°C at the naturally rising source, about 800 m underground.
- Bathing temperature
- The hotel says the water is heated to about 42–43°C; this is not a fixed measured temperature for every pool.
- Spring source
- The Miegusuku hot spring at Loisir Hotel, a self-flowing fossil seawater spring about 8 million years old from around 800 m underground.
- Spring classification
- Iodine-bearing sodium chloride spring.
- pH
- Not published in the current material summarized here.
- Flow rate
- Not published in the current material summarized here.
- Water handling
- The hotel says the spring rises at 40.9°C and is heated to about 42–43°C for bathing. Its current text pages do not publish complete water-addition, circulation or disinfection details, so the baths are not described as entirely source-flowing.
Bathing indications
The hotel lists general bathing indications including neuralgia, muscle and joint pain, sensitivity to cold and fatigue. These are not treatment guarantees.
The hotel confirms heating from 40.9°C to around 42–43°C. Other pool-specific water-treatment conditions are not fully published.
Standard visitor admission is ¥3,500 for adults and ¥1,750 for children aged 4–12. The official digital ticket is ¥2,500 for adults and ¥1,250 for children and includes towels.
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.
