All 8 rooms feature open-air hot spring baths with free-flowing natural spring water. A secluded accommodation with all rooms in separate buildings, perfect for adults seeking tranquility.
Kotengu Sanroji, located in the secluded Kawano Onsen area of Shimonoseki, offers a unique retreat. Each of the eight Rooms has its own distinct charm, designed exclusively for adults. The private open-air baths in the guest Rooms feature 24-hour natural hot spring water, allowing you to indulge in the luxurious Kawano waters whenever you desire. The independent bedrooms are equipped with spacious and comfortable beds, while the cozy living areas feature carefully selected sofas. This hidden Property emphasizes "privacy," providing a serene space where you can spend precious moments with your loved ones amidst the slow flow of time.
For my first solo trip, I chose Yamaguchi Prefecture—a place I had never visited before—and drove from Fukuoka in a rental car. I selected this Accommodation as the first stop of a journey that marked an important turning point in my life. While I was feeling tense driving in an unfamiliar area, I managed to arrive safely, and the warm welcome from the staff and their friendly conversation immediately put me at ease. The Room was lovely, and the Onsen water felt gentle on the skin, allowing me to truly relax. It’s not flashy; if you’re looking for a calm and quiet stay, I highly recommend it! I booked a Plan with breakfast only, and it was delicious. If I have the chance, I would definitely like to stay here again.
支笏湖Green 7/9/2026On the second day of our road trip, we met up with our daughter who had flown in, and the three of us stayed here.The Room was a detached type and very spacious and easy to use. We used the open-air bath in the Room in the morning, and after we arrived my daughter and I used the large public bath at the neighboring Ryokan. The bathhouse was in an older building, but it was great—especially since it felt like we had it all to ourselves.Both dinner and breakfast were very satisfying.If possible, it would have been even better if the fugu sashimi had been served before the shabu-shabu.Just one point: perhaps unavoidable for the season, but there were quite a lot of mosquitoes. The Room was fine with a mosquito repellent, but we had to battle them while using the open-air bath.The service was excellent, and my wife and daughter were both very satisfied.
クワ 5/19/2026
Facilities and Services
See All- Hot spring
- Room with Open-Air Bath
| IN | 15:00~18:00 |
|---|---|
| OUT | 11:00 |
| Number of rooms | 8 rooms |
| Pet | Not allowed |
| Your child | Not allowed |
| Children under 12 years old are not permitted to stay. |
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Introduction of the Accommodation




Approach to Kotengu Sanroji
Our facility accommodates only 8 groups per day. All 8 Rooms are equipped with an indoor bath, open-air bath, and private garden. Detached. Enjoy the Onsen at your leisure in a private open-air bath just for "us." The quiet bedroom features spacious and comfortable beds, while the cozy living area offers tatami mats and sofas, creating a serene space. Perfect for couples or married partners. Each Room is isolated, allowing you to fully enjoy private moments. Indulge in the luxurious space and the leisurely flow of time.

A private dining area ensuring privacy. This is the venue for dinner and breakfast for property guests. The head chef prepares meals with care to allow you to enjoy seasonal and local ingredients.

At Kotengu Sanroji, each Room is equipped with an open-air bath. Enjoy a luxurious space and a relaxing time.
Facilities and Equipment of Accommodation
- The room
- Hot Springs & Baths
- Facilities & Services
- Meal
Basic Information
| Taxes | Hot Spring Tax (150 yen per person) |
|---|---|
| Card information | VISA / MASTER / JCB / AMEX / DINERS |
| Pets | Not allowed |
| Breakfast | There is no information about breakfast. |
| Your child | You cannot stay. Children under 12 years old are not permitted to stay. |
| Room service | Not available |
| Common amenities |
|
| Facilities and Features |
|
| Esthetic Massage | None |
| Fitness gym | None |
| Room with Open-Air Bath |
|
| Spring quality and benefits | Contains low-level radioactive sodium-calcium chloride Onsen Neuralgia, muscle pain, joint pain, frozen shoulder, motor paralysis, joint stiffness, bruises, sprains, chronic digestive disorders, hemorrhoids, sensitivity to cold, fatigue recovery, health promotion, cuts and more. ※Regarding the notation of "Gensen Kakenagashi" |
| Sauna | None |
| Hot stone spa | None |
| Others | *Gift certificates cannot be accepted. *QR code payments (such as PayPay) are not available on-site. Guests staying at our accommodation can enjoy the large public bath at the main building, "Kotengu Ryokan," free of charge. [Available Hours: 15:00–23:00 / 6:00–8:00] |
| About Hygiene Measures | ● Please wear a mask outside of your guest room.
● Guests are kindly requested to cooperate with temperature checks during check-in.
└ If a high fever is detected, we may decline the check-in process.
● Our staff practice regular handwashing, gargling, and wear masks.
● Staff undergo regular temperature checks.
● We maintain social distancing during customer interactions.
● Regular disinfection and cleaning are conducted in the facility and shared areas.
● The facility and shared areas are ventilated regularly.
● Air purifiers are installed in each guest room.
● Meal preparation and serving methods have been adjusted for safety.
● Measures are taken to prevent overcrowding in dining areas.
● Meals are served in private rooms for your comfort and safety.
● Amenities in the bathing area are disinfected regularly. |
Reviews
- Rooms & Amenities4.53
- Facility4.40
- Hospitality & Service4.68
- Meals4.66
- Onsen & Bath4.62
- Satisfaction4.55
*Reviews that have been translated from Japanese.*
*Showing only reviews from 一休.com (Japanese) and Yahoo!トラベル.*
Access Information
Yamaguchi Prefecture5153, Kawatana, Toyoura-cho, Shimonoseki City
TEL:+81-83-772-0227
■By JR
Get off at Kawatana Onsen Station on the JR San'in Main Line, then about 5 minutes by taxi.
From "Shin-Shimonoseki Station" on the JR Shinkansen, about 30 minutes by taxi or rental car.
【For visitors from Hiroshima City】
Other than by car: Ube Airport → About 1 hour and 30 minutes to Shimonoseki Station by highway bus → About 30 minutes to Kawatana Station.
- Parking Information
- Fee
- Free for guests
- Parking time
- ---
- Parking space
- No restrictions
- Number of parking spaces
- 8 cars available outdoor
- Valet service
- Unavailable
- Pickup and drop-off information
- Unavailable
Frequently Asked Questions
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: Contains low-level radioactive sodium-calcium chloride Onsen ・Spring efficacy: Neuralgia, muscle pain, joint pain, frozen shoulder, motor paralysis, joint stiffness, bruises, sprains, chronic digestive disorders, hemorrhoids, sensitivity to cold, fatigue recovery, health promotion, cuts and more.
What kind of facilities and features are available?
There are the following facilities and features. Hot spring・Rooms with open-air baths available・Free-flowing hot spring
I would like to know the access information.
■By JR Get off at Kawatana Onsen Station on the JR San'in Main Line, then about 5 minutes by taxi. From "Shin-Shimonoseki Station" on the JR Shinkansen, about 30 minutes by taxi or rental car. 【For visitors from Hiroshima City】 Other than by car: Ube Airport → About 1 hour and 30 minutes to Shimonoseki Station by highway bus → About 30 minutes to Kawatana Station.
Is parking available?
・Fee: Free for guests ・Parking space: Length --- Vehicle width --- Vehicle height --- ・Number of parking spaces: 8 cars ・Valet Service: Unavailable Due to the difficulty of parking, we may need to take responsibility for moving your car and request your car key only in unavoidable situations, such as when vehicles cannot pass each other. Thank you for your understanding.
Is an internet connection available?
Connection is possible. ・Wi-Fi is available. For more details, please refer to the room and plan information.
What kind of hygiene management is being conducted?
● Please wear a mask outside of your guest room. ● Guests are kindly requested to cooperate with temperature checks during check-in. └ If a high fever is detected, we may decline the check-in process. ● Our staff practice regular handwashing, gargling, and wear masks. ● Staff undergo regular temperature checks. ● We maintain social distancing during customer interactions. ● Regular disinfection and cleaning are conducted in the facility and shared areas. ● The facility and shared areas are ventilated regularly. ● Air purifiers are installed in each guest room. ● Meal preparation and serving methods have been adjusted for safety. ● Measures are taken to prevent overcrowding in dining areas. ● Meals are served in private rooms for your comfort and safety. ● Amenities in the bathing area are disinfected regularly.
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