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- Hotel Spax Kusatsu
Hotel Spax Kusatsu
Gunma Prefecture／AzumaKusatsu Onsen, renowned for having the largest hot spring water volume in Japan, offers a relaxing experience where you can enjoy exquisite Kaiseki cuisine featuring seasonal flavors.
At the property that achieved first place in Gunma Prefecture, meticulous service and a comfortable atmosphere are its attractions. Enjoy the onsen with abundant water volume and strong sterilization power from the largest "Bandai Gensen" in Kusatsu Onsen, in the large public bath and open-air bath. Additionally, savor traditional Japanese kaiseki cuisine and a variety of dishes centered around Joshu brand meat in a tranquil restaurant. Relaxation on spacious beds is also a delightful experience.
We stayed in two Rooms with a total of seven people—my daughter’s family and my son. We have stayed here before, and it remains a favorite because we can truly relax, and both dinner and breakfast are served in private dining rooms so we can enjoy our meals at a leisurely pace. The grandchildren enjoyed not only the Onsen but also the pool, and they even wrote in their summer vacation diary that they want to come again. The staff also left a very positive impression with their courteous service.
Yahoo!トラベルユー... 8/14/2026I stay here every summer, and I was just as satisfied this year as always. The meals at this Hotel are excellent in both quality and quantity, though the portions may be too large for very elderly guests to finish. The Onsen is a Kusatsu-style sulfur spring, perfect for relaxing both body and mind. The Room has been renovated and feels bright and clean. For those who have given up their driver’s license, the on-demand Shuttle Service from the Hotel to the bus terminal is greatly appreciated. All staff members—at the front desk, Shuttle Service, and elsewhere—are kind and courteous. The international staff in the restaurant had mastered Japanese, and their service was outstanding. This time I stayed 4 nights and 5 days, but ideally I would like to stay for about a week to 10 days. I would like to continue staying here as a repeat guest.
Yahoo!トラベルユー... 8/9/2026
Facilities and Services
See All- Hot spring
| IN | 14:00～22:00 |
|---|---|
| OUT | 10:00 |
| Number of rooms | 18 rooms |
| Pet | Not allowed |
| Your child | Permitted |
Photo
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Introduction of the Accommodation
Cuisine
Indulge in a variety of dishes and proud flavors, from kaiseki cuisine that values the spirit of harmony to Joshu brand meat.
Room
Comfortable Western-style rooms, traditional Japanese-style rooms, or Japanese-Western hybrid rooms tailored to your needs.
Large public baths and open-air baths with natural hot spring water. Relax your body and mind while enjoying the seasonal garden and the changing seasons of the Kusatsu Highlands.
Conveniently located on the highlands of Kusatsu, near the famous Yubatake and ski resorts. Enjoy the seasonal scenery of the Kusatsu Highlands.
Facilities and Equipment of Accommodation
- The room
- Hot Springs & Baths
- Meal
Basic Information
| Card information | VISA / MASTER / JCB / AMEX / DINERS |
|---|---|
| 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 |
|
| Spring quality and benefits | Chloride Onsen Acidic Hydrogen Sulfide Onsen Acidic Alum Onsen Muscle pain, nerve pain, fatigue recovery ※Regarding the notation of "Gensen Kakenagashi" |
| Sauna | Available |
| Hot stone spa | None |
| Others | Other available cards: UC, DC, UFJ Card |
| About Hygiene Measures | At our Hotel, we implement infection prevention measures in accordance with the "New Coronavirus Response Guidelines." |
Reviews
- Rooms & Amenities4.04
- Facility3.96
- Hospitality & Service4.75
- Meals4.71
- Onsen & Bath4.21
- Satisfaction4.42
*Reviews that have been translated from Japanese.*
*Showing only reviews from 一休.com (Japanese) and Yahoo!トラベル.*
Access Information
Gunma Prefecture470-1 Kusatsu, Kusatsu-machi, Agatsuma-gun
TEL：+81-279-88-2333
25 minutes by JR bus from JR Naganohara-Kusatsuguchi Station (Shuttle Service available between Kusatsu Bus Terminal and Hotel). 90 minutes by car from Shibukawa I.C.
- 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)A free Shuttle Service is available between Kusatsu Onsen Bus Terminal and the Hotel. Guests wishing to use this service should call upon arrival at the bus terminal. (9:00~17:00) No Shuttle Service is available after 17:00. Please use a taxi.
Frequently Asked Questions
Please provide information about Open-air bath.
・Hot spring: Available ・Free-flowing: Available ・Cloudy hot spring water: None ・Supplementary information: 100% natural hot spring The open-air bath operates on a time-sharing system for men and women.
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: Chloride Onsen Acidic Hydrogen Sulfide Onsen Acidic Alum Onsen ・Spring efficacy: Muscle pain, nerve pain, fatigue recovery
What kind of facilities and features are available?
There are the following facilities and features. Hot spring・Open-air bath・Free-flowing hot spring・Large public bath・Sauna・Within a 5-minute walk to the convenience store.・Free shuttle service
I would like to know the access information.
25 minutes by JR bus from JR Naganohara-Kusatsuguchi Station (Shuttle Service available between Kusatsu Bus Terminal and Hotel). 90 minutes by car from Shibukawa I.C.
Is parking available?
・Fee： Free for guests ・Parking space： Length --- Vehicle width --- Vehicle height --- ・Number of parking spaces： 30 cars ・Valet Service： Unavailable
Is there a sauna?
Yes, there is.
What kind of hygiene management is being conducted?
At our Hotel, we implement infection prevention measures in accordance with the "New Coronavirus Response Guidelines."