Gero Onsen, Gero, Gifu
Gero Onsen Shirasagi-no-Yu
Shirasagi-no-Yu is one of Gero's simplest low-cost ways to bathe in a formal public bath with hinoki indoor bathing and tatami flooring. Choose elsewhere if you want outdoor baths, a sauna or supplied toiletries.
Facility photos


Check before bathing
- Opening hours
- Open 10:00–20:45, last admission 20:00. Closed Wednesdays, or Fridays when Wednesday is a public holiday. Admission is ¥470 for adults, ¥180 for elementary-school children and ¥100 for younger children. Bring toiletries; shampoo and body wash are not supplied, and towels are sold rather than rented. Cash only.
Spring & water temperature
- Spring-source temperature
- 55.6°C in the facility's current onsen data
- Bathing temperature
- 42.2°C at the stated point of use; this is not a shared fixed temperature for every bath
- Spring source
- Gero Onsen's centrally managed supply, blended from 12 sources and distributed to facilities at bathing temperature
- Spring classification
- Alkaline simple spring
- pH
- 9.1
- Flow rate
- Not published
- Water handling
- Shirasagi-no-Yu uses centrally managed Gero Onsen water. Its current main pages do not give a complete pool-by-pool breakdown of added water, heating, circulation and disinfection, so the bath is not described as 100% free-flowing.
Bathing indications
The facility publishes Gero Onsen spring information, not a guarantee of individual health effects.
Admission is ¥470 for adults, ¥180 for elementary-school children and ¥100 for younger children. Open 10:00–20:45, last entry 20:00; closed Wednesdays, or Fridays when Wednesday is a holiday. Bring toiletries and cash; towels are for sale, not rent. 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.
