Sarugakyo Onsen, Minakami, Gunma
Onsen Farm Inn Hashiba (Day Use)
Hashiba is a good option for a simple, low-cost soak if you value the inn's direct-source free-flowing setup over hotel facilities. Its irregular holidays make calling ahead essential.
Check before bathing
- Opening hours
- Day-use bathing is listed from 08:00–18:00, with other hours available by arrangement. Admission is ¥500 for adults and ¥300 for children. The inn takes irregular holidays, so call before travelling. Day visitors are not offered meals.
- Tattoo policy
- The official site and tourism pages checked do not confirm a tattoo policy. Call the inn before visiting.
Spring & water temperature
- Spring-source temperature
- 53.7°C in the inn's linked analysis sheet dated 2005-02-16
- Bathing temperature
- Not published
- Spring source
- A blend of Sarugakyo Onsen wells No. 1 and No. 2
- Spring classification
- Sodium-calcium sulfate and chloride spring (weakly alkaline, low-tonicity, high-temperature spring)
- pH
- 7.5 in the linked analysis sheet dated 2005-02-16
- Flow rate
- 27 L/min delivered directly from the source to the bath, according to the current inn page
- Water handling
- The inn says 27 L/min flows directly from the source into the bath and describes the water as 100% natural and free-flowing. It also describes the bath as free-flowing 24 hours. Its currently linked analysis sheet, dated February 16, 2005, lists no added water, heating, circulation filtration, bath additives or chlorine-based agents; these are dated analysis-sheet details, not a new 2026 test.
- Analysis date
- 2005-02-16
Bathing indications
The inn lists general bathing indications including neuralgia, muscle pain, cuts, burns, chronic digestive complaints, fatigue and general health. These are not treatment guarantees.
Admission is ¥500 for adults and ¥300 for children, 08:00–18:00, with other times by arrangement. Holidays are irregular; call ahead. Meals are not offered to day visitors. The listed pH and treatment details are from a 2005 analysis sheet. Tattoo rules are unconfirmed.
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.
