Right Onsen › Gunma › Agatsuma
Yamakikan
4.4★ · 121 Google ratings · Agatsuma, Gunma · 山木館
✓ Day visitors✓ Outdoor bath✓ Private bath✓ Kakenagashi
Before you go
Can you bathe here?
Day visitors
✓ YesStated on the facility's website
Hours
Not publishedCheck the official site
Last entry
17:30Stated on the facility's website
Tattoos
? Call aheadNo policy stated in the 34 recent reviews we read or on the facility's website
Price
¥500 adultStated on the facility's website
Child price
¥300Stated on the facility's website
Private bath
✓ AvailableConfirmed by recent visitor reports
How we know this
- Day visitors: stated on the facility's website, read 2026-09
- 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
- Private bath: Guests from 2023-2026 consistently describe a free, first-come-first-served private/family bath included in the stay, lockable via an occupied light. · 3 visitors, Feb 2024 – May 2026
The bath
What you’ll find
Yamakikan is a small, quiet 8-room ryokan near Kawarayu Onsen offering source-fed (kakenagashi) but diluted sulfur-scented baths, free first-come-first-served private baths, and provided toiletries; it appears to be lodging-only, not a day-use spot.
Bath setup
Outdoor bath
✓ YesReported by one visitor
Private bath
✓ YesConfirmed by recent visitor reports
Spring water
Spring type
sulfurReported by one visitor
Free-flowing (kakenagashi)
✓ FullFresh spring water flows continuously through the bath
Water added
✓ YesReported by two visitors
How we know this
- Outdoor bath: A 2025 review mentions an outdoor bath in addition to the private bath. · 1 visitor, Jan 2025
- Private bath: Guests from 2023-2026 consistently describe a free, first-come-first-served private/family bath included in the stay, lockable via an occupied light. · 3 visitors, Feb 2024 – May 2026
- Spring type: A 2025 review describes the spring as having a faint sulfur scent, said to help with skin and joint conditions. · 1 visitor, Feb 2025
- Free-flowing (kakenagashi): Multiple guests (2024-2026) describe the indoor bath as naturally source-fed kakenagashi, though it is also diluted with added water. · 3 visitors, Jun 2024 – Sep 2026
- Water added: Two reviews (2024, 2026) note the spring water is diluted with added water despite being kakenagashi. · 2 visitors, Jun 2024 – Mar 2026
Practical
What you need
Towels
✓ IncludedReported by two visitors
Soap & shampoo
✓ ProvidedStated on the facility's website
Facilities
Rest area
✓ YesReported by one visitor
Lodging
✓ YesConfirmed by recent visitor reports
How we know this
- Towels: Reviews from 2025 note towels are provided and stocked at the private bath entrance. · 2 visitors, Feb 2025 – Mar 2025
- Soap & shampoo: 2023-2024 reviews describe high-quality shampoo, conditioner, and body wash provided in the baths. · stated on the facility's website, read 2026-09 · 2 visitors, Dec 2023 – Nov 2024
- Rest area: A 2024 review mentions a rest area with vending machines and massage chairs. · 1 visitor, Feb 2024
- Lodging: This is an overnight ryokan (2022-2026 reviews), not a day-use bath facility. · 3 visitors, May 2022 – Sep 2026
Getting there
How to get there
Address
454-91 Kawarayu, Naganohara, Agatsuma District, Gunma 377-1302〒377-1302 Gunma, Agatsuma District, 吾妻郡 長野原町川原湯454-91 · From the facility's listing
Show a driver
山木館The name in Japanese, for a taxi or at the counter
Phone
+81279-83-2221Japanese-speaking. For tattoos or private baths a call is the only sure answer
Website
yamakikan.jpOfficial, in Japanese
The map loads only when you ask for it and connects your browser to Google.
Nearby
Other baths close by
Find another
Not the right bath?
Where are you starting from?
More options
What matters
Contribute
Been here recently?
Help other visitors with fresh information about Yamakikan. Everything below is optional except the last box.
Questions
Common questions
Is the water free-flowing spring water?
Multiple guests (2024-2026) describe the indoor bath as naturally source-fed kakenagashi, though it is also diluted with added water.
