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- Gensen Kakenagashi Hot Spring Theme Park Ryudo
Gensen Kakenagashi Hot Spring Theme Park Ryudo
Gunma Prefecture／Yuno's small OnsenEver-changing landscapes, 18 hidden hot springs where dragons breathe.
Ryūdō is located in a secluded area in the mountains of Minakami, Gunma, at an altitude of 800m, where you can enjoy nature and experience 18 open-air hot springs with a wild charm.
There are many cats on the property, and some of them will let you pet them, which is incredibly soothing. On the other hand, if you’re not comfortable around cats, it might be a bit tough. At night, when I went to the “Star” bath, a kitty had snuck in and was curled up in a changing basket (lol).Many of the staff are from overseas, but everyone’s attentiveness was truly outstanding—from guiding us to our Room to serving meals—so I never felt uneasy during my stay.Most importantly, the Onsen was fantastic: we were able to reserve several large baths for private use, and it was a lot of fun.If there’s one thing to note, since it’s surrounded by nature, you may see some insects. I was also worried about mobile reception, but Rakuten Mobile and au worked without any issues.I’d love to visit again when the weather is cooler.
R141 7/28/2026I usually stay at expensive places, but they’re all the same and boring. This Accommodation has lots of private baths—and you can use them anytime, 24 hours a day! There’s nowhere else like it. The meals are great too—I was amazed. The location is a bit inconvenient and the Facility is old, but that’s why it’s reasonably priced. And checkout is at 11:00—does anywhere else do that? Probably only here. I’ll be back in winter for a snowy-view bath! Oh, there are cats on the property, just so you know.
さだちょー 6/17/2026
Facilities and Services
See All- Hot spring
- Room with Open-Air Bath
| IN | 15:00～18:00 |
|---|---|
| OUT | 11:00 |
| Number of rooms | 22 rooms |
| Pet | Not allowed |
| Your child | Permitted |
Photo
See All
- Japanese-style Room
- Capacity 1~4 people
- Japanese-style Room
- Capacity 1~2 people
- Japanese-style Room
- Capacity 1~4 people
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Introduction of the Accommodation
Ryudo is located in a hidden gem of Gunma Minakami, nestled in the mountains at an altitude of 800 meters. Here, you can fully enjoy nature while experiencing a tour of 18 open-air Onsen baths, brimming with rustic charm. Thanks to the abundant hot spring water, all open-air Onsen baths on the premises are supplied with 100% natural hot spring water directly from the source, available for private use free of charge, 24 hours a day, with no time limits. We also offer day-use Onsen for those who are busy, allowing you to enjoy all the private open-air Onsen baths. Located about 3 hours from Tokyo Station, it is an ideal destination for a day trip drive for those living in the Kanto area. Please visit the hidden gem of Gunma Minakami and enjoy the open-air Onsen baths surrounded by nature. Our staff eagerly awaits your visit.
18 secret hot springs, all outdoor baths are available for private use.
All open-air baths are available for private use free of charge, 24 hours a day, with no time limits, so you can fully enjoy exploring these hidden hot springs without any worries. There are 18 diverse open-air baths, each with unique designs, allowing you to thoroughly indulge in a variety of hot spring experiences. Some baths are located along the river, offering a close-up view of the flowing water, while others are large enough to accommodate over 20 people. At night, relax under the moon and stars, and in the morning, soak in the refreshing mountain air accompanied by the chirping of birds. Depending on the time of day, you can enjoy different views and atmospheres. The luxury of soaking whenever you want, as much as you want, without worrying about others. Immerse yourself in the ultimate indulgence of exploring hidden hot springs to your heart's content.
Each open-air bath is equipped with a stamp station, and those who complete all 18 locations will receive a commemorative gift. Please give it a try!
We welcome you with a total of 22 Rooms nestled in a natural setting surrounded by mountains and rivers. In the riverside Rooms, you can relax while listening to the flow of the river through the window. In the mountainside Rooms, you can enjoy the diverse landscapes that nature offers throughout the seasons. Occasionally, you may encounter wildlife such as serows or wild monkeys, providing unique experiences exclusive to the mountains.
In Oku-Tone, the remote area of Mizukami, nature's bounty from mountains and rivers abounds, using fresh seasonal vegetables harvested from the mountains on the same day. We carefully select seasonal ingredients from mountains and rivers throughout the year, creatively presenting dishes suited to each season, paying close attention to safety, and delivering the finest cuisine. Among them, the salt-grilled iwana fish is particularly well-received. Please enjoy at your leisure in private dining rooms.
Facilities and Equipment of Accommodation
- The room
- Hot Springs & Baths
- Facilities & Services
- Meal
Basic Information
| Taxes | Hot Spring Tax of 150 Yen per adult will be charged additionally. |
|---|---|
| Card information | VISA / MASTER / JCB / AMEX / DINERS / Debit card |
| Pets | Not allowed |
| Breakfast | There is no information about breakfast. |
| Your child | You can stay. |
| Room service | Available for use Beverages are available until 10:00 PM. |
| Common amenities |
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| Facilities and Features |
|
| Esthetic Massage | None |
| Fitness gym | None |
| Open-air bath |
|
| Private bath |
|
| Room with Open-Air Bath |
|
| Spring quality and benefits | Weak Alkaline Simple Spring Fatigue recovery, relief from gastrointestinal issues, neuralgia, cold sensitivity, and skin beautification benefits. ※Regarding the notation of "Gensen Kakenagashi" |
| Sauna | Available |
| Hot stone spa | None |
| About Hygiene Measures | Thank you very much for your continued patronage of our facility.
At our facility, we are implementing the following measures to prevent the spread of COVID-19 and kindly request your cooperation.
【At Check-in】
- Alcohol disinfection at the front desk for guests
- Temperature checks for all guests
- Alcohol disinfection by staff after each interaction
【Within the Facility】
- Placement of "alcohol disinfectant" at the entrance and dining area
- Ventilation of areas prone to close contact
【After Check-in】
- Guidance via in-room telephone instead of visiting the Room unless necessary
- Suspension of futon-laying service, changed to self-service
【Dining Area】
- Alcohol disinfection before guests enter private dining rooms
- Reducing the number of times dishes are served to minimize contact opportunities
- Thorough disinfection and sterilization of kitchen and tableware
【At Check-out】
- Alcohol disinfection after each guest interaction (e.g., Room keys)
- Promotion of cashless payments
【Room Cleaning】
- Ensuring thorough ventilation
- Final wiping with sodium hypochlorite solution
【Employee Health Management】
- Strict handwashing and gargling
- Health checks and management (e.g., temperature checks before coming to work)
- Mandatory mask-wearing during customer interactions
*We will continue to make improvements to ensure even greater safety and security for our guests and staff.* |
Reviews
- Rooms & Amenities3.83
- Facility3.93
- Hospitality & Service4.24
- Meals4.21
- Onsen & Bath4.72
- Satisfaction4.34
*Reviews that have been translated from Japanese.*
*Showing only reviews from 一休.com (Japanese) and Yahoo!トラベル.*
Access Information
Gunma PrefectureTonegōri Minakami-machi Fujiwara 6192
TEL：+81-278-75-2086
JR: Take a bus from Minakami Station to Yunokoya Onsen for 40 minutes / Get off at the final bus stop (Yunokoya) and walk for 2 minutes.
- Parking Information
- Fee
- Free for guests
- Parking time
- ---
- Parking space
- No restrictions
- Number of parking spaces
- 26 cars available Indoor & Outdoor
- Valet service
- Unavailable
- Pickup and drop-off information
- Unavailable
Frequently Asked Questions
Please provide information about Open-air bath.
・Business Hours: 00:00～00:00 ・Hot spring: Available ・Free-flowing: Available ・Cloudy hot spring water: None ・Supplementary information: 100% natural hot spring 18 types of open-air baths and 4 indoor baths are available 24 hours.
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・Private bath・Sauna・Room service
I would like to know the access information.
JR: Take a bus from Minakami Station to Yunokoya Onsen for 40 minutes / Get off at the final bus stop (Yunokoya) and walk for 2 minutes.
Is parking available?
・Fee： Free for guests ・Parking space： Length --- Vehicle width --- Vehicle height --- ・Number of parking spaces： 26 cars ・Valet Service： Unavailable
Please provide information about Private bath.
・Business Hours: 00:00～00:00 ・Hot spring: None ・Free-flowing: Available ・Cloudy hot spring water: None ・Supplementary information: 100% natural hot spring
Is there a sauna?
Yes, there is.
What kind of hygiene management is being conducted?
Thank you very much for your continued patronage of our facility. At our facility, we are implementing the following measures to prevent the spread of COVID-19 and kindly request your cooperation. 【At Check-in】 - Alcohol disinfection at the front desk for guests - Temperature checks for all guests - Alcohol disinfection by staff after each interaction 【Within the Facility】 - Placement of "alcohol disinfectant" at the entrance and dining area - Ventilation of areas prone to close contact 【After Check-in】 - Guidance via in-room telephone instead of visiting the Room unless necessary - Suspension of futon-laying service, changed to self-service 【Dining Area】 - Alcohol disinfection before guests enter private dining rooms - Reducing the number of times dishes are served to minimize contact opportunities - Thorough disinfection and sterilization of kitchen and tableware 【At Check-out】 - Alcohol disinfection after each guest interaction (e.g., Room keys) - Promotion of cashless payments 【Room Cleaning】 - Ensuring thorough ventilation - Final wiping with sodium hypochlorite solution 【Employee Health Management】 - Strict handwashing and gargling - Health checks and management (e.g., temperature checks before coming to work) - Mandatory mask-wearing during customer interactions *We will continue to make improvements to ensure even greater safety and security for our guests and staff.*
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