A hot spring renowned for beautifying the skin in a village under starry skies. Awaken your senses and savor seasonal cuisine and tranquility—an exquisite moment at Sansui.
Nestled in the Hirugami Onsen area of Achi Village, Minami-Shinshu—often praised as home to Japan’s finest starry skies—Oyado Sansui is an Accommodation where you can truly unwind. Enjoy the “beauty-skin bath” in an alkaline sulfur spring known for its silky feel, and savor seasonal cuisine for a luxurious moment of indulgence. A lounge with complimentary drinks is available, and from the guest rooms and corridors you can look out over “Suiten Tenjo Garden,” created by a Kyoto gardener. Let your spirit be refreshed by breathtaking scenery of waterfalls, stone gardens, and flowers—why not spend a blissful holiday here?
We stayed as three generations and booked two Rooms (a barrier-free Japanese-Western Room and a Japanese-Western Room for four).■Room Barrier-free Japanese-Western Room It felt a bit dated, but it was very clean and comfortable even with a wheelchair. That said, the view from the window was mostly the garden hillside, so the scenery was a little underwhelming, and the Room felt slightly dark at times.Japanese-Western Room (for four) A beautifully renovated, stylish space! With an amazing view of the pond right in front of us, our daughters were thrilled.■Onsen・Facility / Inside the Accommodation The tatami hallways meant no slippers were needed—such a relaxing atmosphere. There was also a footbath area where we could unwind. The private bath in particular was spacious, so my mother could use it with peace of mind. The Onsen water quality was surprisingly rich and moisturizing—truly wonderful.■Meals・Service The food portions were generous and everything tasted excellent. The extra-ordered horse sashimi was also very satisfying. When they prepared a cake for us, they kindly helped set things up so we could enjoy it in our Room, which we really appreciated. The free drinks after viewing hanamomo blossoms (including draft beer) were also fantastic.■Overall The Rooms, Onsen, and meals were all outstanding—we had such a fulfilling stay. We would definitely like to return to this Accommodation.
Yahoo!トラベルユー... 7/7/2026This was my second stay, and I hesitated a bit because I had a poor impression of the attendant last time. This time, the attendant was from Myanmar (I apologize if I’m mistaken), and their attentiveness made my stay very comfortable. The meals were the same as last time, but I was surprised at how much more I could enjoy them simply because of the difference in service. I’m grateful to an attendant who truly wanted me to relax and enjoy my time here.
Yahoo!トラベルユー... 7/15/2026
Facilities and Services
See All- Hot spring
| IN | 13:00~18:30 |
|---|---|
| OUT | 11:00 |
| Number of rooms | 28 rooms |
| Pet | Not allowed |
| Your child | Permitted |
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Introduction of the Accommodation




Gate
A quiet Accommodation in the mountain village of Hirugami Onsen in Minami-Shinshu, preserving the charm of a bygone era. Check-in is from 13:00 and check-out is until 11:00, allowing you to relax for up to 22 hours. “Suiten Tenjo Garden,” meticulously crafted by a Kyoto gardener, features waterfalls, a rock garden, and seasonal flowers that create a beautiful landscape to soothe your mind.
Facilities and Equipment of Accommodation
- The room
- Hot Springs & Baths
- Facilities & Services
- Meal
Basic Information
| Card information | VISA / MASTER / JCB / AMEX / DINERS / UnionPay / Debit card |
|---|---|
| Pets | Not allowed |
| Breakfast | There is no information about breakfast. |
| Your child | You can stay. |
| Room service | Not available |
| Common amenities |
|
| Facilities and Features |
|
| Esthetic Massage | None |
| Fitness gym | None |
| Public Bath |
|
| Open-air bath |
|
| Private bath |
|
| Spring quality and benefits | Hirugami Onsen Yumoto No. 2, 3, and 4 Hot Spring Sources (Well No. 2) Fatigue recovery, improved health, neuralgia, joint pain, muscle pain, frozen shoulder, mobility issues, chilblains, diabetes, beauty benefits, and healthier-looking skin. |
| Sauna | Available |
| Hot stone spa | AvailableJPY 1,100 per person (tax included) / 60 minutes / Reservation |
| Others | ■Other Cards Mitsubishi UFJ NICOS DC Card, Yahoo! JAPAN Card Rakuten Card |
Reviews
- Rooms & Amenities4.08
- Facility3.92
- Hospitality & Service4.33
- Meals4.08
- Onsen & Bath4.33
- Satisfaction4.08
*Reviews that have been translated from Japanese.*
*Showing only reviews from 一休.com (Japanese) and Yahoo!トラベル.*
Access Information
Nagano Prefecture290-1 Chisato, Achi Village, Shimoina District
TEL:+81-265-43-3000
Nearest station: Iida Station (40 min by bus)
Nearest expressway interchange: Chuo Expressway — Iida-Yamamoto IC / Sonohara IC (Nagoya-bound only) (10 min by car)
- Parking Information
- Fee
- Free for guests
- Parking time
- ---
- Parking space
- No restrictions
- Number of parking spaces
- 30 cars available outdoor
- Valet service
- Unavailable
- Pickup and drop-off information
- Available (Free)Reservation required
If using the expressway, expressway tolls are at the guest’s expense.
Frequently Asked Questions
Please provide information about Open-air bath.
・Business Hours: 06:00~23:00 ・Hot spring: Available ・Free-flowing: None ・Cloudy hot spring water: None ・Supplementary information: (Heating) Cleaning hours: 9:00–10:00 (Thursdays: 9:00–13:00)
What are the qualities and benefits of the hot spring water?
The spring quality and efficacy of the hot spring are as follows. ・Spring quality: Hirugami Onsen Yumoto No. 2, 3, and 4 Hot Spring Sources (Well No. 2) ・Spring efficacy: Fatigue recovery, improved health, neuralgia, joint pain, muscle pain, frozen shoulder, mobility issues, chilblains, diabetes, beauty benefits, and healthier-looking skin.
What kind of facilities and features are available?
There are the following facilities and features. Hot spring・Open-air bath・Large public bath・Private bath・Sauna・Ganbanyoku (rock bathing)・Free shuttle service
I would like to know the access information.
Nearest station: Iida Station (40 min by bus) Nearest expressway interchange: Chuo Expressway — Iida-Yamamoto IC / Sonohara IC (Nagoya-bound only) (10 min by car)
Is parking available?
・Fee: Free for guests ・Parking space: Length --- Vehicle width --- Vehicle height --- ・Number of parking spaces: 30 cars ・Valet Service: Unavailable 1 accessible parking space
Please provide information about Private bath.
・Business Hours: 13:00~22:45 ・Hot spring: Available ・Free-flowing: None ・Cloudy hot spring water: None ・Supplementary information: (Heating) JPY 1,650 per session (tax included) / 45 minutes / Reservation
Is an internet connection available?
Connection is possible. ・Wi-Fi is available. For more details, please refer to the room and plan information.
Is there a sauna?
Yes, there is.
Do you have a rock bath?
Yes, there is. JPY 1,100 per person (tax included) / 60 minutes / Reservation











