Right Onsen › Gunma › Minakami
Sanazawa Terrace
4.3★ · 142 Google ratings · Minakami, Gunma · さなざわ㞢テラス（温泉＆サウナ）
✓ Day visitors✓ Outdoor bath✓ Sauna
Before you go
Can you bathe here?
Day visitors
✓ YesStated on the facility's website
Hours
Not publishedCheck the official site
Last entry
19:00Stated on the facility's website
Tattoos
? Call aheadNo policy stated in the 33 recent reviews we read or on the facility's website
Price
¥900 adultStated on the facility's website
Child price
¥500Stated on the facility's website
How we know this
- Day visitors: Multiple visitors report day-use bathing is available and practiced throughout 2024–2026. · stated on the facility's website, read 2026-09 · 2 visitors, Apr 2026 – Jun 2026
- Last entry: stated on the facility's website, read 2026-09
- Price: stated on the facility's website, read 2026-09
- Child price: stated on the facility's website, read 2026-09
Atmosphere
The bath
What you’ll find
Mountain day-use hot spring with strong alkaline water (pH 9.6), indoor and outdoor baths overlooking rice terraces, sauna available; crowding and cramped changing room are concerns.
Bath setup
Indoor baths
1.0Reported by two visitors
Outdoor bath
✓ YesReported by two visitors
Sauna
✓ YesSauna available; wood-fired sauna is reservation-only and generates significant smoke during operation.Confirmed by recent visitor reports
View
MountainConfirmed by recent visitor reports
Spring water
Spring type
sodium-calcium sulfate, alkalineConfirmed by recent visitor reports
Bath temperature
41°CReported by two visitors
pH
pH 9.6Reported by one visitor
How we know this
- Indoor baths: Facility has one indoor bath and one outdoor bath. · 2 visitors, Sep 2025 – Feb 2026
- Outdoor bath: Facility has an indoor and outdoor bath (rotenburo) overlooking rice terraces, mentioned throughout 2024–2026. · 2 visitors, Mar 2025 – Feb 2026
- Sauna: Sauna available; wood-fired sauna is reservation-only and generates significant smoke during operation. · 3 visitors, Jan 2025 – May 2026
- View: Outdoor bath overlooks rice terraces (tanada) and mountain landscape; seasonal snow and greenery views. · 3 visitors, Mar 2025 – Apr 2026
- Spring type: Water is strongly alkaline (pH 9.6+) with silica; described as smooth and moisturizing. · 3 visitors, Oct 2025 – May 2026
- Bath temperature: Indoor bath temperature is comfortable and warm; outdoor bath reported as slightly cool. · 2 visitors, Jul 2025 – Feb 2026
- pH: Water pH is 9.6 with metasilicic acid, classified as beauty spring water. · 1 visitor, Jan 2025
Practical
What you need
Towels
Rental availableStated on the facility's website
Soap & shampoo
✓ ProvidedStated on the facility's website
Hair dryer
✓ YesHair dryers are available and free; only 2–4 units for facility capacity.Reported by two visitors
Parking
✓ Free on siteFrom the facility's listing
Facilities
Rest area
✓ YesReported by two visitors
Restaurant
✓ YesReported by one visitor
How we know this
- Towels: stated on the facility's website, read 2026-09
- Soap & shampoo: stated on the facility's website, read 2026-09
- Hair dryer: Hair dryers are available and free; only 2–4 units for facility capacity. · 2 visitors, Jan 2025 – Jul 2025
- Rest area: Large rest area with tatami, kotatsu (heated table), manga, board games (Uno, go), and free water/lemon water. · 2 visitors, Jan 2026 – Feb 2026
- Restaurant: Café and rest/dining facility available. · 1 visitor, Jul 2025
Getting there
How to get there
Nearest station
Jomo-Kogen · JR EastAbout 23 min on foot, 1.8 km in a straight line
Address
2537-2 Tsukiyono, Minakami, Tone District, Gunma 379-1313From the facility's listing
Show a driver
さなざわ㞢テラス（温泉＆サウナ）The name in Japanese, for a taxi or at the counter
Phone
+8150-1807-3582Japanese-speaking. For tattoos or private baths a call is the only sure answer
Website
sanazawa.jpOfficial, in Japanese
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What matters
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Questions
Common questions
Can I visit Sanazawa Terrace without staying overnight?
Multiple visitors report day-use bathing is available and practiced throughout 2024–2026.
