Right Onsen › Tokyo › Itabashi City
Iwa-no-yu
3.6★ · 142 Google ratings · Itabashi City, Tokyo · 岩乃湯
✓ Day visitors✓ Sauna
Before you go
Can you bathe here?
Day visitors
✓ YesFrom the facility's listing
Hours
15:30–23:00From the facility's listing
Closed
Thursday, FridayWeekly closing days from the listing
Tattoos
? Call aheadNo policy stated in the 38 recent reviews we read
Bathing
Men and women separateConfirmed by recent visitor reports
How we know this
- Day visitors: Listed as a sento (public bathhouse): a bath for day visitors by definition. No visitor review states otherwise. · from the listing category
- Bathing arrangement: The men's and women's baths are separate sections, each with a similar set of tubs. · 3 visitors, Dec 2023 – Mar 2025
The bath
What you’ll find
Iwa-no-yu is a small neighborhood public bathhouse near Shimoakatsuka with a paid sauna and a cold plunge that has grown lukewarm since switching from well water to tap water; it is closed on Thursdays and Fridays.
Bath setup
Indoor baths
3Reported by one visitor
Outdoor bath
✕ NoReported by one visitor
Sauna
✓ YesConfirmed by recent visitor reports
Cold bath
✓ YesConfirmed by recent visitor reports
Rest area
✓ YesConfirmed by recent visitor reports
How we know this
- Indoor baths: A detailed 2024 review counts three indoor tubs: a medicinal bath, a large jetted bath, and a cold bath, plus a separate paid sauna. · 1 visitor, Sep 2024
- Outdoor bath: One reviewer explicitly confirms there is no open-air soaking tub, only an open-air cool-down space. · 1 visitor, Jun 2025
- Sauna: Reviewers describe a paid sauna (about 150 yen) with high heat around 90-98°C, offered separately from the main bathing fee, mentioned across 2023-2026. · 3 visitors, May 2025 – Aug 2026
- Cold bath: The plunge pool used to be filled with well water but now runs on tap water, leaving it noticeably warmer (roughly 20-34°C) and less refreshing than expected. · 3 visitors, Jun 2024 – May 2025
- Rest area: There is an outdoor cool-down space used after bathing or sauna, plus an indoor rest area near the entrance. · 3 visitors, Oct 2023 – Jun 2026
Guide
Good to know
Cold bath
The plunge pool used to be filled with well water but now runs on tap water, leaving it noticeably warmer (roughly 20-34°C) and less refreshing than expected.
Confirmed by recent visitor reportsHair dryer
Hair dryers are available; one reviewer in 2026 says they are free while another in 2023 says they cost 20 yen, suggesting a possible policy change.
Reported by two visitorsPractical
What you need
Towels
Rental availableConfirmed by recent visitor reports
Soap & shampoo
✓ ProvidedConfirmed by recent visitor reports
Hair dryer
✓ YesReported by two visitors
How we know this
- Towels: A face or bath towel is lent free when paying the separate sauna fee, though this is not confirmed for regular bathing admission alone. · 3 visitors, Mar 2025 – Jul 2025
- Soap & shampoo: Body soap and rinse-in shampoo are provided free at the washing stations. · 3 visitors, Jun 2025 – Aug 2026
- Hair dryer: Hair dryers are available; one reviewer in 2026 says they are free while another in 2023 says they cost 20 yen, suggesting a possible policy change. · 2 visitors, Dec 2023 – Aug 2026
Timing
When to go
Quietest Monday around 15:00. Busiest Saturday around 20:00.
| 8A | 9A | 10A | 11A | 12P | 13P | 14P | 15P | 16P | 17P | 18P | 19P | 20P | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| MO | |||||||||||||
| TU | |||||||||||||
| WE | |||||||||||||
| TH | |||||||||||||
| FR | |||||||||||||
| SA | |||||||||||||
| SU |
Quiet Busy
Based on Google visit patterns, not a forecast.
Weekly hours
| Day | Hours |
|---|---|
| Monday | 15:30–23:00 |
| Tuesday | 15:30–23:00 |
| Wednesday | 15:30–23:00 |
| Thursday | Closed |
| Friday | Closed |
| Saturday | 15:30–23:00 |
| Sunday | 13:00–21:00 |
Closed Thursday, Friday.
Getting there
How to get there
Nearest station
Shimo-akatsukaAbout 6 min on foot, 0.5 km in a straight line
Address
6 Chome-12-2 Akatsuka, Itabashi City, Tokyo 175-0092From the facility's listing
Show a driver
岩乃湯The name in Japanese, for a taxi or at the counter
Phone
+813-3930-3750Japanese-speaking. For tattoos or private baths a call is the only sure answer
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Questions
Common questions
Can I visit Iwa-no-yu without staying overnight?
Listed as a sento (public bathhouse): a bath for day visitors by definition. No visitor review states otherwise.
