Right Onsen › Gunma › Ueno
Hamadaira Onsen Shioji no Yu
4.0★ · 543 Google ratings · Ueno, Gunma · 浜平温泉しおじの湯
✓ Day visitors✓ Outdoor bath
Before you go
Can you bathe here?
Day visitors
✓ YesStated on the facility's website
Hours
11:00–20:00From the facility's listing
Closed
Tuesdays, winter irregularStated on the facility's website
Last entry
18:30Stated on the facility's website
Tattoos
? Call aheadNo policy stated in the 33 recent reviews we read or on the facility's website
Price
¥600 adultConfirmed by recent visitor reports
Child price
¥400Stated on the facility's website
How we know this
- Day visitors: stated on the facility's website, read 2026-09
- Closed: stated on the facility's website, read 2026-09
- Last entry: stated on the facility's website, read 2026-09
- Price: Adult admission is a consistent 600 yen, with a senior discount to 500 yen. · 6 visitors, Apr 2026 – Aug 2026
- Child price: stated on the facility's website, read 2026-09
The bath
What you’ll find
A remote, riverside village-run onsen in Ueno-mura with a small indoor bath and a highly praised outdoor bath overlooking the Kannagawa river; the 14.7C weakly acidic cold mineral source is heated and chlorinated (no sauna or cold plunge), and one reviewer drove two hours only to find it closed for unannounced maintenance.
Bath setup
Indoor baths
1.0Reported by one visitor
Outdoor bath
✓ YesConfirmed by recent visitor reports
Sauna
✕ NoReported by one visitor
Cold bath
✕ NoReported by one visitor
View
RiverConfirmed by recent visitor reports
Spring water
Spring type
sodium sulfate, high metasilicic acid, weakly acidic…Confirmed by recent visitor reports
Source temperature
14.7°CReported by one visitor
pH
pH 3.6Reported by one visitor
Heated
✓ YesConfirmed by recent visitor reports
Chlorinated
✓ YesConfirmed by recent visitor reports
How we know this
- Indoor baths: There is one indoor bath. · 1 visitor, Jun 2026
- Outdoor bath: An outdoor bath overlooking the Kannagawa river is the facility's main draw. · 8 visitors, Sep 2025 – Aug 2026
- Sauna: There is no sauna. · 1 visitor, May 2026
- Cold bath: There is no cold plunge bath. · 1 visitor, May 2026
- View: The outdoor bath directly overlooks the Kannagawa river. · 6 visitors, May 2026 – Jul 2026
- Spring type: The spring is a hypotonic, weakly acidic cold mineral spring, sodium-sulfate leaning, notable for high metasilicic acid content said to give skin-smoothing effects. · 4 visitors, May 2026 – Aug 2026
- Source temperature: The posted spring analysis (Reiwa 3) lists a source temperature of 14.7C. · 1 visitor, Jun 2026
- pH: The official posted spring analysis states pH 3.6, though one other reviewer separately recalls being told pH 4.2. · 1 visitor, Jun 2026
- Heated: The naturally cold (14.7C) source is heated to a bathable ~40C. · 3 visitors, May 2026 – Jul 2026
- Chlorinated: Several reviewers detect a mild chlorine/disinfectant smell. · 3 visitors, Nov 2025 – Jul 2026
- Full spring description: sodium sulfate, high metasilicic acid, weakly acidic cold mineral spring
Practical
What you need
Towels
Rental availableStated on the facility's website
Soap & shampoo
✓ ProvidedConfirmed by recent visitor reports
Lockers
✓ FreeReported by two visitors
Hair dryer
✓ FreeReported by two visitors
Parking
✓ Free on siteFrom the facility's listing
Facilities
Rest area
✓ YesReported by two visitors
Restaurant
✓ YesConfirmed by recent visitor reports
How we know this
- Towels: stated on the facility's website, read 2026-09
- Soap & shampoo: Body soap and shampoo/conditioner are provided. · 3 visitors, May 2026 – Jun 2026
- Lockers: Changing-room lockers require no coin. · 2 visitors, Nov 2025 – Jun 2026
- Hair dryer: Two hair dryers are provided with no fee mentioned by reviewers. · 2 visitors, May 2026 – Jun 2026
- Rest area: A modest rest area with sofa-style seating and a sunroom terrace is available. · 2 visitors, Oct 2025 – Jun 2026
- Restaurant: A well-liked restaurant serves local specialties like inobuta (wild boar-pig) pork dishes, though its hours are short. · 8 visitors, Sep 2025 – Aug 2026
Timing
When to go
Weekly hours
| Day | Hours |
|---|---|
| Monday | 11:00–20:00 |
| Tuesday | 09:00–20:00 |
| Wednesday | 11:00–19:00 |
| Thursday | Closed |
| Friday | Closed |
| Saturday | 11:00–20:00 |
| Sunday | 11:00–20:00 |
Closed Tuesdays, winter irregular.
Getting there
How to get there
Nearest station
Shimonita17.2 km in a straight line; bus or taxi from the station
Address
3487-2 Narahara, Ueno, Tano District, Gunma 370-1617From the facility's listing
Show a driver
浜平温泉しおじの湯The name in Japanese, for a taxi or at the counter
Phone
+81274-59-3955Japanese-speaking. For tattoos or private baths a call is the only sure answer
Website
www.shiojinoyu.comOfficial, in Japanese
The map loads only when you ask for it and connects your browser to Google.
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Questions
Common questions
How much does Hamadaira Onsen Shioji no Yu cost?
Adult admission is a consistent 600 yen, with a senior discount to 500 yen.