A stunning Property with open-air baths in every room, nestled in a tranquil mountain setting with views of Mount Tanigawa.
Senju-an, a villa located in a tranquil mountain valley along the murmuring stream. We offer the highest quality relaxation space, harmoniously blending traditional Japanese and modern styles, with the seasonal backdrop of Mount Tanigawa.
Although we stayed for only one night, it was a wonderful Accommodation with thoughtful services exactly where we hoped they would be.We could feel the attention to detail everywhere—an all-inclusive in-Room minibar, three kinds of cold drinks prepared at the large public bath, an impressive umeshu collection with 100 varieties (a paradise for umeshu lovers like us), and grilled fish for the Japanese breakfast that you can choose from three options.All of the staff were very cheerful and the overall service quality was excellent. In particular, we were truly moved by the attentive hospitality of the foreign male staff member who took care of us at dinner. We were also surprised by how fluent his Japanese was.Dinner was delicious as well, and we appreciated the focus on local ingredients. The Senju hot pot made with Masuda beef was wonderfully tender and rich.From check-in to check-out, we spent a genuinely relaxing time—simply gazing at the view from our Room in the rain and enjoying forest bathing in a private setting. It was an ideal vacation that helped us forget everyday life and feel refreshed both physically and mentally.If I may mention one thing, incense, fragrant olive flower arrangements, and stick diffusers were placed throughout the building. Even though we came to enjoy such clean air in this area, the scent felt a bit too strong. While you promote sustainability as an Accommodation, it felt somewhat contradictory—and disappointing—that even items like shampoo, body soap, and towels are fragranced.Some guests may enjoy fragrance, but others are sensitive to it as well; I would appreciate it if you could take this into consideration going forward.Thank you very much for a wonderful stay.
Green D 9/22/2026Although we were concerned about traveling during the Obon season and with unstable weather, we arrived safely with no issues on the roads. The welcome was attentive as always, and the familiar atmosphere made us feel at ease. The Room was clean, and the open-air bath was at a comfortable temperature, allowing us to relax. The meals featured many locally sourced ingredients, were perfectly portioned, and truly delicious. We had another wonderful stay and will visit again.
おかはしあ 8/23/2026
Facilities and Services
See All- Hot spring
- Room with Open-Air Bath
- Spa facility
| IN | 13:00~18:00 |
|---|---|
| OUT | 11:00 |
| Number of rooms | 18 rooms |
| Pet | Not allowed |
| Your child | Permitted |
Photo
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Introduction of the Accommodation
A gentle and cherished blissful time away from the hustle.
A blend of modern architecture and traditional techniques. Relax in the serene mountain environment with views of the renowned Mount Tanigawa. Our establishment received the "Luxury Hideaway Resort" award at the prestigious "World Luxury Hotel Awards 2016," often referred to as the "Academy Awards of the travel industry."










Design of Bettei Senjuan
Inside the facility, there are various designs crafted by skilled artisans, including a glass-curved corridor illuminated fantastically at night, ceilings in the dining area featuring the Edo Suminagashi technique, plaster and Kyoto earthen walls, handmade special washi paper at the entrance, stainless steel tatami mats, and Kumiko shoji screens at the dining area entrance.

Onsen with Stone Bath, Wooden Bath, and Open-Air Bath. The open-air bath along the valley is enveloped by the breath of nature.

All rooms feature open-air baths with views of Mount Tanigawa.

Kaiseki cuisine with a gentle and simple taste. Enjoy the local mountain flavors with heartfelt hospitality.

At the SORA spa room, we offer a high-quality relaxation time that cannot be experienced in the city, in a space surrounded by negative ions and enhanced with the effects of Onsen.
Facilities and Equipment of Accommodation
- The room
- Hot Springs & Baths
- Facilities & Services
- Meal
Basic Information
| Taxes | Hot Spring Tax |
|---|---|
| Card information | VISA / MASTER / JCB / AMEX / DINERS / UnionPay |
| Pets | Not allowed |
| Breakfast | There is no information about breakfast. |
| Your child | You can stay. We do not allow infants and elementary school children to enter Western-style and Japanese-Western-style rooms. |
| Room service | Not available |
| Common amenities |
|
| Facilities and Features |
|
| Esthetic Massage | Available Esthetic Room Universe (SORA)
Business Hours: 13:00~18:00 (Complete Reservation System)
※ Please contact us in advance regarding operations. |
| Fitness gym | None |
| Public Bath |
|
| Open-air bath |
|
| Room with Open-Air Bath |
|
| Spring quality and benefits | Calcium-Sodium-Sulfate-Chloride Onsen (Hypotonic, Weakly Alkaline Onsen) Neuralgia, gynecological diseases ※Regarding the notation of "Gensen Kakenagashi" |
| Sauna | Available |
| Hot stone spa | None |
| About Hygiene Measures | At our facility, we implement daily measures based on the basic policy for infection prevention to maintain a safe and comfortable environment for you. We apologize for any inconvenience this may cause and appreciate your understanding and cooperation in preventing infections. |
Reviews
- Rooms & Amenities4.56
- Facility4.55
- Hospitality & Service4.66
- Meals4.49
- Onsen & Bath4.68
- Satisfaction4.59
*Reviews that have been translated from Japanese.*
*Showing only reviews from 一休.com (Japanese) and Yahoo!トラベル.*
Access Information
Gunma PrefectureTonegōn Minakami-machi Tanigawa 614
TEL:+81-278-20-4141
【By Car】
Tokyo - Kanetsu Expressway (approximately 1 hour 30 minutes) - Minakami IC - (approximately 10 minutes) - Villa Senjuan
【By Shinkansen】
Tokyo - Joetsu Shinkansen (approximately 1 hour 15 minutes) - Jomo Kogen Station - Route Bus (approximately 25 minutes) - Minakami Station (Shuttle Service 8 minutes, Reservation) - Villa Senjuan
- Parking Information
- Fee
- Free for guests
- Parking time
- ---
- Parking space
- No restrictions
- Number of parking spaces
- 19 cars available outdoor
- Valet service
- Unavailable
2 Tesla car charging spaces
1 Porsche car charging space
- Pickup and drop-off information
- Available (Free)● By train: If using the Joetsu Shinkansen, disembark at Jomo-Kogen Station and take a route bus to Minakami Station. (Approximately 25 minutes) From Minakami Station, a pick-up vehicle is available. Please call us to request.
Frequently Asked Questions
Please provide information about Open-air bath.
・Business Hours: 13:00~10:30 ・Hot spring: Available ・Free-flowing: None ・Cloudy hot spring water: None ・Supplementary information: 100% natural hot spring Closed for cleaning from 19:00 to 20:00 and 10:30 to 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: Calcium-Sodium-Sulfate-Chloride Onsen (Hypotonic, Weakly Alkaline Onsen) ・Spring efficacy: Neuralgia, gynecological diseases
What kind of facilities and features are available?
There are the following facilities and features. Hot spring・Rooms with open-air baths available・Open-air bath・Free-flowing hot spring・Large public bath・Sauna・Spa facility・Free shuttle service
I would like to know the access information.
【By Car】 Tokyo - Kanetsu Expressway (approximately 1 hour 30 minutes) - Minakami IC - (approximately 10 minutes) - Villa Senjuan 【By Shinkansen】 Tokyo - Joetsu Shinkansen (approximately 1 hour 15 minutes) - Jomo Kogen Station - Route Bus (approximately 25 minutes) - Minakami Station (Shuttle Service 8 minutes, Reservation) - Villa Senjuan
Is parking available?
・Fee: Free for guests ・Parking space: Length --- Vehicle width --- Vehicle height --- ・Number of parking spaces: 19 cars ・Valet Service: Unavailable 2 EV car charging spaces 2 Tesla car charging spaces 1 Porsche car charging space
Is an internet connection available?
Connection is possible. ・Wi-Fi is available. ・Wired connection is available. For more details, please refer to the room and plan information.
Is there a sauna?
Yes, there is.
Do you have esthetic massages?
Yes, there is. Esthetic Room Universe (SORA) Business Hours: 13:00~18:00 (Complete Reservation System) ※ Please contact us in advance regarding operations.
What kind of hygiene management is being conducted?
At our facility, we implement daily measures based on the basic policy for infection prevention to maintain a safe and comfortable environment for you. We apologize for any inconvenience this may cause and appreciate your understanding and cooperation in preventing infections.
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