Miyazawa Lake, Hanno, Saitama Prefecture
Miyazawako Onsen Kirari Bettei
A good half-day choice from Hanno Station if you want lake scenery, a natural spring, stone spa, rest areas and dining. It does not admit preschool children or tattooed guests, and it is not a low-cost quick soak.
Check before bathing
- Opening hours
- 09:00–23:00; last admission 22:00. Adult admission without towels is ¥1,050 on weekdays and ¥1,100 on weekends and holidays. The simple course with towels is ¥1,350/¥1,400; the relaxed course with towels and stone spa is ¥1,850/¥2,100. Preschool children are not admitted.
- Tattoo policy
- Tattoos, tattoo-like markings and tattoo stickers are prohibited. No cover-seal exception is confirmed.
Spring & water temperature
- Spring-source temperature
- Not published as a numeric temperature in the current source information.
- Bathing temperature
- No fixed pool temperatures are published.
- Spring source
- Miyazawako Onsen, from about 1,500 metres underground.
- Spring classification
- Alkaline simple hot spring; low-tonicity, alkaline and cool spring.
- pH
- 9.5.
- Flow rate
- 67.0 L/min.
- Water handling
- The facility distinguishes pool treatment: the outdoor rock bath is described as added water, heated and source-flowing; the panoramic outdoor bath and reclining bath use added water, heating and circulation. Chlorine-based chemicals are used for sanitation. The source-flowing description does not apply to every pool.
- Analysis date
- 2026
Bathing indications
The facility lists general bathing indications; these are not a treatment guarantee.
The facility posted a special-period notice for 19–27 September 2026; check current prices for those dates. Preschool children and tattooed visitors are not admitted.
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.
