Nagano · Shirahone Onsen
Shirahone Public Open-air Bath
白骨温泉 公共野天風呂
Right at the Shirahone bus stop, gender-separated public open-air pools built against the gorge cliff. Milky bicarbonate water for ¥700; no washing area, pure rustic soaking. Closed late Nov–late Apr and Tuesdays. Handy before or after Awa-no-yu's short day-use window.
- Price (adult)
- ¥700
- Hours
- 10:00–16:00(Sat/Sun 09:00–17:00)
- Closed
- Thu; closed in winter (late Nov–late Apr)
- Access
- Bus from Shin-Shimashima Station (70 min) to Shirahone Onsen
- Water type
- Bicarbonate spring
- Tattoos
- Ask ahead
- Phone
- 0263-93-3251
- Official site
- shirahone-onsen.org ↗
- Open in Google Maps
- Google Maps ↗
Essentials
Stay in this onsen town
Compare and book stays in Shirahone Onsen. Day bathing itself needs no booking.
Opens partner booking site (affiliate)
Why go
- Milky open-air bath for ¥700
- Right at the bus stop
- Easy to pair with Awa-no-yu
Before you go
- No official tattoo policy is published — ask at reception.
- As a communal bath there is no soap or shampoo — bring your own or buy at the shop.
- Payment is usually by ticket machine in cash — bring coins.
- Last entry is 30–60 minutes before closing.
Features
Mood & scenery
Price
Convenience
Amenities
✔ Verified operating: 2026-09 ゆる〜と 2026-05 口コミ（700円）
Prices and hours change. Check official sources before visiting.
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O-yu (Nozawa outer bath)
The centerpiece of Nozawa's 13 public baths, a traditional bathhouse in the middle of the village. Local 'yunakama' associations have cleaned it daily since the Edo period; payment is a donation in the box at the door. Two pools, hot and 'mild' — though even the mild one exceeds 42°C. Adding cold water is bad manners: rinse first, then keep soaks short. No soap or shampoo.
Shirahone Onsen Awanoyu
The signature inn of Shirahone, famous for milky-white water. Its highlight is a large mixed-gender open-air bath — the water is so opaque that women find it comfortable. Day use at midday only.