Right Onsen › Gunma › Yoshioka
Yoshioka Rivertopia
3.7★ · 848 Google ratings · Yoshioka, Gunma · リバートピア 吉岡
✓ Day visitors✓ Outdoor bath✓ Sauna
Before you go
Can you bathe here?
Day visitors
✓ YesFrom the facility's listing
Hours
10:00–21:00From the facility's listing
Tattoos
? Call aheadNo policy stated in the 24 recent reviews we read or on the facility's website
Price
¥600 adultConfirmed by recent visitor reports
Bathing
Men and women separateReported by two visitors
How we know this
- Day visitors: Listed as a super sento: a bath for day visitors by definition. No visitor review states otherwise. · from the listing category
- Price: Current adult admission is 600 yen, up from 400 yen some years ago per a longtime regular. · 4 visitors, Mar 2026 – Jul 2026
- Bathing arrangement: Men's and women's baths are separate, referenced independently by different reviewers. · 2 visitors, Jun 2026
The bath
What you’ll find
A cheap, popular roadside-station day-spa (michi-no-eki) with brown iron-tinged water, a spacious open-air bath with two uchase-yu cascade jets, sauna and cold bath, though the outdoor view is plain and hair dryers now cost extra.
Bath setup
Outdoor bath
✓ YesConfirmed by recent visitor reports
Sauna
✓ YesReported by two visitors
Cold bath
✓ YesReported by two visitors
Spring water
Spring type
iron-rich, brown-coloredConfirmed by recent visitor reports
How we know this
- Outdoor bath: A spacious, open outdoor bath area is a highlight, mentioned across many reviews. · 6 visitors, Apr 2026 – Jul 2026
- Sauna: Has a sauna, though regulars often occupy it. · 2 visitors, Jun 2026 – Aug 2026
- Cold bath: A cold plunge bath exists next to the sauna, though it's often occupied by regulars. · 2 visitors, Jun 2026 – Aug 2026
- Spring type: Water is consistently described as brownish, likely iron-rich. · 4 visitors, Mar 2026 – Jul 2026
Practical
What you need
Lockers
✓ FreeReported by two visitors
Hair dryer
PaidHair dryers cost 100 yen per 5 minutes; bringing your own dryer to use a free outlet is possible.Confirmed by recent visitor reports
Accessibility
Step-free entrance, accessible restroom and accessible parkingFrom the facility's listing. Bath access not confirmed
Facilities
Restaurant
✓ YesConfirmed by recent visitor reports
How we know this
- Lockers: Shoe lockers and lockable changing-room lockers are free, no coin deposit needed. · 2 visitors, Apr 2026 – Jul 2026
- Hair dryer: Hair dryers cost 100 yen per 5 minutes; bringing your own dryer to use a free outlet is possible. · 3 visitors, Apr 2026 – Jul 2026
- Restaurant: An on-site restaurant serves food including motsuni stew, soba and set meals with the bath. · 4 visitors, Apr 2026 – Aug 2026
Timing
When to go
Quietest Thursday around 10:00. Busiest Sunday around 15:00.
| 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 | 10:00–21:00 |
| Tuesday | 10:00–21:00 |
| Wednesday | 10:00–21:00 |
| Thursday | 10:00–21:00 |
| Friday | 10:00–21:00 |
| Saturday | 10:00–21:00 |
| Sunday | 10:00–21:00 |
Getting there
How to get there
Nearest station
Gumma-Soja2.8 km in a straight line; bus or taxi from the station
Address
1989 Urushibara, Yoshioka, Kitagunma District, Gunma 370-3601From the facility's listing
Show a driver
リバートピア 吉岡The name in Japanese, for a taxi or at the counter
Phone
+81279-55-4126Japanese-speaking. For tattoos or private baths a call is the only sure answer
Website
www.yoshioka-onsen.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
Can I visit Yoshioka Rivertopia without staying overnight?
Listed as a super sento: a bath for day visitors by definition. No visitor review states otherwise.
How much does Yoshioka Rivertopia cost?
Current adult admission is 600 yen, up from 400 yen some years ago per a longtime regular.
