Right Onsen › Tokyo › Ota City
Daiichi Sagami-yu
4.2★ · 130 Google ratings · Ota City, Tokyo · 第一相模湯
✓ Day visitors✓ Kakenagashi
Before you go
Can you bathe here?
Day visitors
✓ YesFrom the facility's listing
Hours
14:30–23:00From the facility's listing
Closed
MondayWeekly closing days from the listing
Tattoos
? Call aheadNo policy stated in the 34 recent reviews we read or on the facility's website
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
The bath
What you’ll find
Daiichi Sagami-yu is a traditional Ota-ku neighborhood sento famous for its natural black hot-spring (kuroyu) baths, a carbonated bath and a cold source-water plunge, but no sauna; bring your own towel since the black water can stain rentals.
Bath setup
Outdoor bath
✕ NoReported by one visitor
Sauna
✕ NoConfirmed by recent visitor reports
Cold bath
✓ YesConfirmed by recent visitor reports
Rest area
✓ YesReported by one visitor
Spring water
Spring type
sodium chloride-bicarbonate cold mineral springReported by one visitor
Source temperature
18°CReported by two visitors
Free-flowing (kakenagashi)
✓ FullFresh spring water flows continuously through the bath
How we know this
- Outdoor bath: One visitor noted there is no outdoor bath. · 1 visitor, Aug 2023
- Sauna: Multiple visitors from 2023 to 2026 confirmed the bath has no sauna. · 4 visitors, Jan 2025 – Apr 2026
- Cold bath: A small one-person cold black-water tub fed by the source was widely reported from 2024 onward, though a 2023 visitor said there was no cold bath at that time. · 3 visitors, Aug 2024 – Oct 2025
- Rest area: A rest area is available for use after bathing. · 1 visitor, Jun 2026
- Spring type: The posted spring analysis lists the source as a sodium chloride-bicarbonate cold mineral spring. · 1 visitor, Jul 2024
- Source temperature: The cold source water tub was measured at about 18°C. · 2 visitors, Jun 2025 – Oct 2025
- Free-flowing (kakenagashi): The cold black-water plunge tub is fed by source water on a flow-through (kakenagashi) basis. · 3 visitors, May 2025 – Mar 2026
Guide
Good to know
Hair dryer
Coin-operated hair dryers (about 10 yen for 3 minutes) are available from 2024 through 2026.
Confirmed by recent visitor reportsPractical
What you need
Towels
Rental availableReported by two visitors
Soap & shampoo
✓ ProvidedConfirmed by recent visitor reports
Hair dryer
✓ YesConfirmed by recent visitor reports
How we know this
- Towels: Towel rental (around 130 yen) is available, and one visitor advised bringing your own towel since the black water can stain white towels. · 2 visitors, Jun 2024 – Jan 2025
- Soap & shampoo: Most visitors from 2024 to 2026 found free shampoo and body soap at the washing stations, though a 2026 visitor found none provided and another noted only partial availability. · 3 visitors, Jan 2026 – Jun 2026
- Hair dryer: Coin-operated hair dryers (about 10 yen for 3 minutes) are available from 2024 through 2026. · 3 visitors, Feb 2025 – Jan 2026
Timing
When to go
Quietest Tuesday around 14:00. Busiest Saturday around 18:00.
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Quiet Busy
Based on Google visit patterns, not a forecast.
Weekly hours
| Day | Hours |
|---|---|
| Monday | Closed |
| Tuesday | 14:30–23:00 |
| Wednesday | 14:30–23:00 |
| Thursday | 14:30–23:00 |
| Friday | 14:30–23:00 |
| Saturday | 14:30–23:00 |
| Sunday | 14:30–23:00 |
Closed Monday.
Getting there
How to get there
Nearest station
ZoshikiAbout 8 min on foot, 0.7 km in a straight line
Address
2 Chome-29-2 Nishirokugo, Ota City, Tokyo 144-0056From the facility's listing
Show a driver
第一相模湯The name in Japanese, for a taxi or at the counter
Website
www.daiichisagamiyu.comOfficial, in Japanese
The map loads only when you ask for it and connects your browser to Google.
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What matters
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Questions
Common questions
Can I visit Daiichi Sagami-yu without staying overnight?
Listed as a sento (public bathhouse): a bath for day visitors by definition. No visitor review states otherwise.
Is the water free-flowing spring water?
The cold black-water plunge tub is fed by source water on a flow-through (kakenagashi) basis.
