Right Onsen › Gunma › Minakami
Hallelujah Sanso Onsen
4.6★ · 41 Google ratings · Minakami, Gunma · ハレルヤ山荘 外湯 温泉
✓ Natural hot-spring water✓ Free-flowing source water
Before you go
Can you bathe here?
Day visitors
✓ YesAn unmanned day-use bathhouse open 24 hours, confirmed by four reviewers.stated by 4 visitors · Oct 2023 – Jul 2026
Hours
00:00–24:00from the facility listing
Price
¥500Consistently 500 yen per adult, paid into an honesty box, reported by at least twelve reviewers from 2021 to 2026.stated by 12 visitors · Sep 2021 – Jul 2026
Bathing arrangement
Men and women separateA single indoor bath, gender-separated.stated by 2 visitors · Jul 2021 – Apr 2023
Tattoos
Not known · call aheadno policy stated in the 36 recent reviews we read or on the facility's website
Watch out
Payment
Unmanned self-service cash box with no change machine, so exact coins are required.
stated by 3 visitors · Sep 2022 – Jul 2026The bath
What you’ll find
An unmanned, 24-hour, 500-yen kakenagashi bathhouse tucked in the mountains near Fujiwara, with gender-separated indoor baths, notably hot water, and no outdoor bath, sauna, or rest area.
Outdoor bath
NoNo outdoor bath; a renovation that looked like it might add one did not.stated by 2 visitors · Mar 2024 – Aug 2025
Sauna
NoNo sauna on site.stated by 1 visitor · Aug 2025
Rest area
NoNo rest/lounge area or vending machines.stated by 1 visitor · Aug 2025
The water
Free-flowing (kakenagashi)
✓ YesDescribed as genuine kakenagashi source-fed water by two reviewers.stated by 2 visitors · Apr 2026 – May 2026
Practical
What to bring
Payment
Cash onlyUnmanned self-service cash box with no change machine, so exact coins are required.stated by 3 visitors · Sep 2022 – Jul 2026
Soap & shampoo
✓ ProvidedEight reviewers confirm soap, body wash and shampoo are stocked, though one 2023 reviewer found no amenities and recommended bringing your own.stated by 8 visitors · Aug 2022 – Jul 2026
Hair dryer
✓ YesHair dryer available in the changing room, per six reviewers.stated by 6 visitors · Aug 2022 – Jul 2026
Guide
What visitors add
The water
Water temperature reports conflict: 8 reviews call the water hot to very hot (one estimating over 42 degrees C and needing to dilute with cold water), while 4 reviews found the temperature just right — so expect it hot but variable.
stated by 12 visitors · Jul 2021 – Jul 2026Price
Admission is 500 yen per person, dropped into an unattended fee box at the entrance: at least 10 distinct reviews from 2021 to 2026 state the 500 yen price, and one reviewer calls it the cheapest day-use onsen in the area.
stated by 10 visitors · Sep 2021 – Jul 2026Towels, soap & lockers
Soap, shampoo (rinse-in), body soap and a hair dryer are provided per 7 distinct reviews from 2022-2026 (one October 2023 review claims no amenities, the outlier); bring your own towel per one reviewer, and one notes there are no lockers for valuables.
stated by 8 visitors · Aug 2022 – Jul 2026Staffing
The bath is unmanned (no attendant on site): 8 distinct reviews describe it as 無人/管理人不在, several noting that despite this it is kept remarkably clean by a nearby caretaker; visitors very often have it entirely to themselves.
stated by 8 visitors · Sep 2021 – Jun 2026The water
The water is colorless and clear per one reviewer; one describes a soft water feel, one says skin turns silky (tsuru-tsuru), and one notes no onsen odor or slippery texture — a clean, unassertive spring character.
stated by 4 visitors · Aug 2023 – Mar 2026Day-use visits
Open around the clock: 3 reviews state 24-hour access (one entered at midnight, another calls it '24時間営業中'), but one 2024 reviewer notes there were also days it was not operating, and another (2025) doubts winter access given the deep-mountain location.
stated by 3 visitors · Oct 2023 – Jul 2026Timing
When to go
Quietest Thursday around 19:00; busiest Sunday around 16:00. Measured by Google over past visits, not a forecast.
| 8A | 9A | 10A | 11A | 12P | 13P | 14P | 15P | 16P | 17P | 18P | 19P | 20P | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| MO | |||||||||||||
| TU | |||||||||||||
| WE | |||||||||||||
| TH | |||||||||||||
| FR | |||||||||||||
| SA | |||||||||||||
| SU |
Quiet Busy
| Day | Hours |
|---|---|
| Monday | 00:00–24:00 |
| Tuesday | 00:00–24:00 |
| Wednesday | 00:00–24:00 |
| Thursday | 00:00–24:00 |
| Friday | 00:00–24:00 |
| Saturday | 00:00–24:00 |
| Sunday | 00:00–24:00 |
Practical
Plan your visit
📍 Fujiwara, Minakami, Tone District, Gunma 379-1721
🚃 Yubiso station, 12.0 km
📋 Show at the counter: ハレルヤ山荘 外湯 温泉
Nearby
Other baths close by
Minakami · 3.9★
Contribute
Been here recently?
Help other visitors with fresh information about Hallelujah Sanso Onsen. Everything below is optional except the last box.
