Toyokawa, Ibaraki, Osaka Prefecture
Saito Natural Hot Spring Sumire-no-Yu
A versatile option in Ibaraki if you want a source-flowing spring bath, sauna and heated stone area, with early weekend opening and late hours. Since the shuttle bus has ended, plan around Toyokawa Station, about a five-minute walk away.
Check before bathing
- Opening hours
- Weekdays 09:00–02:00; weekends and public holidays 06:00–02:00. Last admission 01:00.
- Access
- About a 5-minute walk from Toyokawa Station. The facility has announced that its shuttle bus service has ended; do not rely on older shuttle information.
- Tattoo policy
- Not permitted. The current house rules refuse use of all facilities, and require guests found with tattoos of any size or location to leave immediately. No cover-sticker exception is listed.
Spring & water temperature
- Spring-source temperature
- Not published.
- Bathing temperature
- Not published.
- Spring source
- The facility's own spring, drawn from about 1,000 m underground; the formal spring name is not confirmed on its current main text pages.
- Spring classification
- Chloride spring, as described by the facility. Its published composition lists sodium, magnesium and calcium among the main cations, with chloride as the principal anion.
- pH
- Not published.
- Flow rate
- Not published.
- Water handling
- The facility describes its source-spring bath as source-flowing. It also has other natural-spring baths, an artificially carbonated bath, plain-water baths and jet baths; all 13 baths should not be assumed to share natural spring water or source-flowing conditions.
Bathing indications
The facility lists spring-specific indications including cuts, burns and chronic skin conditions, plus general bathing indications such as neuralgia, muscle and joint pain, and fatigue. This is not a treatment guarantee.
Adult admission is ¥900 on weekdays and ¥1,000 on weekends and public holidays.
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.
