Sumiyoshi and Uozaki, Higashinada Ward, Kobe, Hyogo Prefecture
Koino Onsen Uhara-no-Yu
A practical all-in-one choice for an early bath, easy rail access, a source-flowing outdoor spring, two kinds of sauna and a separate stone-spa area. It is not suitable for tattooed visitors.
Check before bathing
- Opening hours
- The natural hot-spring baths are open 06:00–23:30, last admission 23:00. Adult admission is ¥1,200 on weekdays and ¥1,300 on weekends and holidays. The morning rate is ¥850/¥900 for entry 06:00–09:00 and exit by 10:00. The stone spa is open 09:00–22:30, last admission 22:00; ¥800/¥900 and available to junior-high students and older. Re-entry is not allowed.
- Tattoo policy
- Tattoos are not permitted.
Spring & water temperature
- Spring-source temperature
- 47.5°C in the Heisei-era analysis background, confirmed in a 2025 university visit report; the current 2026 facility text does not repeat it.
- Bathing temperature
- Not published in the current official text pages.
- Spring source
- Koino Onsen, drilled 1,089 metres beneath the facility.
- Spring classification
- Sodium chloride spring.
- pH
- 6.8 in the Heisei-era analysis; not repeated on the current 2026 facility text page.
- Flow rate
- 360 L/min in the Heisei-era analysis background; not repeated on the current facility text page.
- Water handling
- The facility says its own natural spring is used on a source-flowing basis in the outdoor bath. Other pools include artificial high-concentration carbonated water, jet baths, electric baths and a cold bath, so the full set of ten baths is not treated as one source-flowing spring system.
- Analysis date
- 29
Bathing indications
The facility lists general indications including muscle and joint pain, back pain and neuralgia. This is not a treatment guarantee.
No re-entry is allowed. Tattooed visitors cannot enter. A member towel benefit is not included in the ordinary visitor ticket.
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.
