Enjoy strong acidic sulfur hot springs, Hokkaido Wagyu beef, and seafood from the Sea of Okhotsk.

A rare highly acidic sulfur hot spring in the country. In 2021, the property featuring a completely natural ph1.7 spring underwent renovation. The interior has been transformed into a modern and tranquil space. Dinner is served in a bright dining area with white wood, where you can savor Hokkaido Wagyu beef and seafood from the Sea of Okhotsk. Enjoy unforgettable hot springs along with nature experiences at Lake Kussharo and Lake Mashu.

  • This trip was a relaxing getaway with my elderly mother. We are grateful for the thoughtful care from everyone at Suiou.At check-in, they noticed my mother using a cane. For bathing, they told us it can be slippery and that she was welcome to bring her cane into the Onsen. At meals, both breakfast and dinner, when we went to the restaurant they prepared a nearby seat for us, and they also let my mother use a cart to carry her food.Their kind words warmed our hearts. The only disappointment was that there were stairs at the entrances to the Onsen and the Living Café, but my mother seemed very satisfied.All of the food was delicious, and we could faintly see Mt. Iou from our Room window—making it a wonderful trip. We promised to come again next year if we are well enough.Thank you so much to all of the staff.

    Yahoo!トラベルユー... 7/19/2026
  • The all-inclusive lounge, available right after arrival, had a calm atmosphere and was the perfect way to start the trip. The in-house wear was samue-style loungewear, easy to move in, and I was able to relax comfortably throughout the Accommodation. Above all, I was truly impressed by the Onsen. The strongly acidic water felt very rich with a silky texture, and after bathing my skin felt smooth and refreshed. It’s such a wonderful Onsen that makes you want to soak again and again—without a doubt the biggest highlight of this Accommodation. The meals offered a wide variety of dishes inspired by Mt. Io cuisine as well as menus using local ingredients, and everything was delicious. The quality of the ingredients really came through, and I was very satisfied. Thanks to the all-inclusive service, comfortable Room, and above all the outstanding Onsen, it was a stay that soothed both body and mind. This is an Accommodation I would definitely love to visit again.

    Yahoo!トラベルユー... 7/11/2026

Facilities and Services

See All
  • Hot spring
Open-air bath / Free-flowing hot spring / Large public bath / Sauna
IN15:00~21:00
OUT10:00
Number of rooms22 rooms
PetNot allowed
Your childPermitted
East Wing Japanese-style Twin
  • Japanese-style Room
  • Capacity 1~2 people

For those arriving late at night or wishing to enjoy dinner in the Onsen town 【Includes breakfast and free drinks】

IN 15:00~21:00
OUT 10:00
¥18,000
Breakfast included ; 2 peopleTax included¥16,200
(USD 101.67)

【Early Bird 45】Dinner at 'haspo' restaurant with Japanese, Western, and Chinese buffet 【Includes dinner, breakfast, and free drinks】

IN 15:00~19:00
OUT 10:00
¥27,000
Dinner and Breakfast included ; 2 peopleTax included¥24,300
(USD 152.50)

For those departing early in the morning or arriving late at night, and wish to enjoy dinner in the Onsen town【Lodging only・Includes free drinks】

IN 15:00~21:00
OUT 10:00
¥26,000
No meals ; 2 peopleTax included¥23,400
(USD 146.85)

For those arriving late at night or wishing to enjoy dinner in the Onsen town 【Includes breakfast and free drinks】

IN 15:00~21:00
OUT 10:00
¥30,000
Breakfast included ; 2 peopleTax included¥27,000
(USD 169.45)

【Early Bird 45】Dinner at 'haspo' restaurant with Japanese, Western, and Chinese buffet 【Includes dinner, breakfast, and free drinks】

IN 15:00~19:00
OUT 10:00
¥29,000
Dinner and Breakfast included ; 2 peopleTax included¥26,100
(USD 163.80)

Dinner at "Restaurant haspo (Hashipo)" featuring a Japanese, Western, and Chinese buffet with locally sourced ingredients 【Includes breakfast, dinner, and free drinks】

IN 15:00~19:00
OUT 10:00
¥30,000
Dinner and Breakfast included ; 2 peopleTax included¥27,000
(USD 169.45)

Best-Selling Stays

Accommodation To Enjoy The Retro Atmosphere Of An Onsen Town

Accommodation With Activities In And Around The Property

Accommodation With Beautiful Starry Sky Views

Accommodation Near Nature, Convenient For Picnics

Introduction of the Accommodation

Basic Information

Card information
VISA / MASTER / JCB / AMEX / DINERS / UnionPay
Pets
Not allowed
BreakfastThere is no information about breakfast.
Your child
You can stay.
Room service
Not available
Common amenities
  • ○ Shampoo · conditioner
  • ○ Body soap · soap
  • ○ Towel · Bath towel
  • × Body towel · sponge
  • ○ Toothbrush set
  • × Comb · Brush
  • × Shower cap
  • ○ Hair dryer
  • × Shaving
  • × Shaving Gel/Foam
  • × Bath additives
  • ○ Yukata
  • × Nightwear
  • × Bathrobe
  • ○ Slippers
  • × facial cleanser
  • × Toner
  • × Lotion
  • × Makeup remover
  • × Cotton swab
  • × Cotton
  • × Clothing deodorizing spray
  • ○ Refrigerator
  • × Minibar
  • ○ Electric kettle
  • × Tea set (free)
  • ○ Television
  • ○ Safe
  • × Scale
  • × Trouser press
  • × Free morning edition
  • × Pay-per-view broadcast
  • × Satellite broadcasting
  • × Video on Demand
  • × Radio
  • × CD player
  • × DVD player
  • × Blu-ray player
  • × Speakers for portable audio
  • × In-room PCs and tablets
Facilities and Features
  • ○ Hot spring
  • × Rooms with open-air baths available
  • ○ Open-air bath
  • ○ Free-flowing hot spring
  • ○ Large public bath
  • × Private bath
  • ○ Sauna
  • × Ganbanyoku (rock bathing)
  • × Within a 5-minute walk from the station
  • × Within a 5-minute walk to the convenience store.
  • × Indoor pool
  • × Outdoor pool
  • × Pet-friendly
  • × Spa facility
  • × Fitness
  • × Free shuttle service
  • × Shuttle Service (Paid)
  • × Room service
  • × Room Service Available 24 Hours
  • × Barrier-free
  • × Childcare services
Esthetic Massage
None
Fitness gym
None
Public Bath
The number of Public Bath
4
Business Hours
15:00~01:00
Hot spring
Available
Free-flowing
Available
Milky hot spring water
None
Additional Information
100% natural hot spring
Remarks
Open-air bath
The number of Open-air bath
2
Business Hours
15:00~01:00
Hot spring
Available
Free-flowing
Available
Milky hot spring water
None
Additional Information
100% natural hot spring
Remarks
Spring quality and benefits

Kawayu Onsen

Chronic skin diseases, chronic gynecological conditions, cuts, diabetes, hypertension, and arteriosclerosis.

※Regarding the notation of "Gensen Kakenagashi"
In some facilities, heating or adding water for temperature adjustment may be performed. Additionally, please note that in some parts of the facility, the hot spring water may not be free-flowing from the source. For more details, please contact each facility.

SaunaAvailable
Hot stone spaNone
OthersOther available cards: UC, DC

Reviews

Overall Score
4.26
Good (92)
  • Rooms & Amenities
    3.95
  • Facility
    4.03
  • Hospitality & Service
    4.34
  • Meals
    4.49
  • Onsen & Bath
    4.40
  • Satisfaction
    4.38

*Reviews that have been translated from Japanese.*

*Showing only reviews from 一休.com (Japanese) and Yahoo!トラベル.*

Access Information

Address
Hokkaido1-2-3 Kawayu Onsen, Teshikaga Town, Kawakami District
TEL:+81-15-486-9701

Approximately 5 minutes by car or 10 minutes by bus from JR Kawayu Onsen Station.
60 minutes by car from Memanbetsu Airport.

Parking Information
Fee
Free for guests
Parking time
---
Parking space
No restrictions
Number of parking spaces
40 cars available outdoor
Valet service
Unavailable

Pickup and drop-off information
Unavailable

Frequently Asked Questions

Find by tourist destination