Right Onsen › Tokyo › Shinjuku City
Yu-za Nakai
4.0★ · 212 Google ratings · Shinjuku City, Tokyo · ゆーザ・中井
✓ Day visitors✓ Tattoos allowed✓ Outdoor bath✓ Sauna
Before you go
Can you bathe here?
Day visitors
✓ YesConfirmed by recent visitor reports
Hours
15:00–01:00From the facility's listing
Closed
ThursdayWeekly closing days from the listing
Tattoos
✓ AllowedConfirmed by recent visitor reports
Price
¥1,150 adultConfirmed by recent visitor reports. The website lists ¥600
Bathing
Men's and women's sides swap by timeConfirmed by recent visitor reports
How we know this
- Day visitors: As a standard neighborhood sento, all visitors pay at a ticket machine or counter for single-visit day bathing, no reservation needed. · 3 visitors, Nov 2024 – May 2026
- Tattoos: Multiple visitors (2025-2026) reported seeing tattooed customers bathing without issue, suggesting tattoos are tolerated. · 3 visitors, Nov 2025 – Jun 2026
- Price: Admission plus sauna access was consistently reported as 1,150 yen (2024-2025); one review noted a temporary 550 yen price during a boiler malfunction in 2024. · 3 visitors, Nov 2024 – Jul 2025
- Bathing arrangement: The men's and women's bathing sides swap daily based on odd/even dates, so the outdoor bath and sauna location differ by day. · 3 visitors, Nov 2024 – Aug 2026
The bath
What you’ll find
Yu-za Nakai is a modern multi-story public bath (sento) near Nakai Station with alternating men's/women's sides featuring an outdoor medicinal rock bath, paid sauna, and cold plunge; cash only, no on-site parking.
Bath setup
Indoor baths
1Reported by two visitors
Outdoor bath
✓ YesConfirmed by recent visitor reports
Sauna
✓ YesConfirmed by recent visitor reports
Cold bath
✓ YesConfirmed by recent visitor reports
Rest area
✓ YesConfirmed by recent visitor reports
Spring water
Bath temperature
42°CReported by two visitors
How we know this
- Indoor baths: The main indoor bathing area has a single large tub with multiple jet features rather than separate pools. · 2 visitors, Jul 2024 – May 2025
- Outdoor bath: An indoor-style outdoor rock bath with medicinal water is available, but only on one side of the gender-alternating layout each day. · 3 visitors, Jul 2025 – Aug 2026
- Sauna: A paid sauna located up a staircase on the second floor was widely used, described as spacious with temperatures around 80-90°C. · 3 visitors, May 2025 – Aug 2026
- Cold bath: A cold plunge bath near the sauna was reported, with temperature around 23°C, sometimes described as small. · 3 visitors, May 2025 – Aug 2026
- Rest area: Reports vary from minimal seating in the changing room to no dedicated rest area near the sauna, with some using outdoor bath benches instead (2025). · 3 visitors, May 2025 – Jun 2026
- Bath temperature: The main bath temperature was measured around 42°C, though another reviewer estimated it closer to 40°C. · 2 visitors, Apr 2026 – May 2026
Guide
Good to know
Rest area
Reports vary from minimal seating in the changing room to no dedicated rest area near the sauna, with some using outdoor bath benches instead (2025).
Confirmed by recent visitor reportsSauna
A paid sauna located up a staircase on the second floor was widely used, described as spacious with temperatures around 80-90°C.
Confirmed by recent visitor reportsBath temperature
The main bath temperature was measured around 42°C, though another reviewer estimated it closer to 40°C.
Reports differ; reported by two visitorsPractical
What you need
Towels
Rental availableConfirmed by recent visitor reports
Soap & shampoo
✓ ProvidedConfirmed by recent visitor reports
How we know this
- Towels: Towels and a sauna mat are provided as part of the sauna admission fee (2024-2026), not included with basic bathing entry. · 3 visitors, Nov 2024 – Jun 2026
- Soap & shampoo: Shampoo and body soap are provided free at the washing stations. · 3 visitors, Apr 2026 – Jul 2026
Timing
When to go
Quietest Tuesday around 15:00. Busiest Sunday around 21:00.
| 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 | 15:00–01:00 |
| Tuesday | 15:00–01:00 |
| Wednesday | 15:00–01:00 |
| Thursday | Closed |
| Friday | 15:00–01:00 |
| Saturday | 15:00–01:00 |
| Sunday | 15:00–01:00 |
Closed Thursday.
Getting there
How to get there
Nearest station
NakaiAbout 3 min on foot, 0.3 km in a straight line
Address
T's Square 1F, 1-13-8 Nakaochiai, Shinjuku City, Tokyo〒161-0032 Tokyo, Shinjuku City, Nakaochiai, 1 Chome−13−8 T's スクウェア １F · From the facility's listing
Show a driver
ゆーザ・中井The name in Japanese, for a taxi or at the counter
Phone
+813-3951-1289Japanese-speaking. For tattoos or private baths a call is the only sure answer
Website
www.1010.or.jpOfficial, in Japanese
The map loads only when you ask for it and connects your browser to Google.
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Questions
Common questions
Does Yu-za Nakai allow tattoos?
Multiple visitors (2025-2026) reported seeing tattooed customers bathing without issue, suggesting tattoos are tolerated.
Can I visit Yu-za Nakai without staying overnight?
As a standard neighborhood sento, all visitors pay at a ticket machine or counter for single-visit day bathing, no reservation needed.
How much does Yu-za Nakai cost?
Admission plus sauna access was consistently reported as 1,150 yen (2024-2025); one review noted a temporary 550 yen price during a boiler malfunction in 2024.
