All rooms feature private open-air Onsen baths. Enjoy a “live on Lake Toya” experience at this lake-view Onsen Accommodation.

A tranquil morning lake as if time has stopped, the lake shimmering under the soft sunlight in the clear air. This is "The Lake Suite," the highest-class location closest to the lake, resonating with its beauty.

  • The front desk staff welcomed us with exceptional kindness. The Room was spacious and spotless, with a breathtaking panoramic view of Lake Toya. In the private open-air bath, we could soak in the Onsen while fully enjoying the spectacular scenery of Lake Toya.The open-air bath in the large public bath on the top floor was at the perfect temperature—never too hot—so we could relax without having to step out repeatedly. Looking down over Lake Toya from the infinity bath, we felt completely refreshed in both body and mind; it was truly outstanding.The dining was also excellent. The dinner buffet featured an abundant selection of fresh sashimi and nigiri sushi, including scallops, sea urchin, and shrimp. There were also hot dishes such as grilled crab legs and steak—all you can eat. Breakfast offered a wide variety of seafood as well, including raw surf clams and sweet shrimp, and our whole family was thoroughly satisfied with the meals at “Kohan no Sumika.”I have stayed at more than 70 Japanese Onsen Ryokan so far, but “Kohan no Sumika” is one of the few Hotels that I can say I absolutely want to return to. Thanks to the warm hospitality of all the staff, our family enjoyed an unforgettable and perfect stay. Thank you very much.2. Business Courtesy Version (more formal and polite tone)This is a flawless Onsen Resort Hotel. I stayed at “Kohan no Sumika” on August 30. The front desk service was extremely courteous, and the Room was spacious, impeccably clean, and well maintained.From the guest Room we could enjoy sweeping views of Lake Toya, and in the private open-air bath we were able to savor both the Onsen experience and the beautiful scenery of Lake Toya to our heart’s content.The top-floor open-air bath had a wonderfully comfortable temperature that allowed for a long soak without overheating. Relaxing while looking down over Lake Toya from the infinity Onsen made for an exceptionally luxurious moment of calm.Dinner was highly satisfying: along with plentiful fresh sashimi and nigiri sushi—such as scallops, sea urchin, and shrimp—there were also all-you-can-eat options like grilled crab and steak. Breakfast likewise included seafood such as raw surf clams and sweet shrimp, leaving our entire family very pleased with its quality.Although I have stayed at more than 70 Japanese Onsen Hotels to date, “Kohan no Sumika” is one of those rare outstanding Accommodations that I would very much like to visit again. I would like to express my sincere gratitude for everyone’s warm hospitality; thanks to you all, our family enjoyed a truly perfect time together.

    Patrick 9/3/2026
  • Our stay at Lake no Sumika was the most memorable part of our trip to Hokkaido.The view of Lake Toya from our Room was truly beautiful, and we were able to relax and enjoy how the lake’s scenery changed throughout the day. The Facility and guest Room were very comfortable, making it feel like staying in a quiet private villa. Soaking in the Onsen while taking in the stunning view was a deeply relaxing and wonderful experience.If we have the chance to visit Hokkaido again, we would definitely like to stay at Lake no Sumika once more. It is also a Hotel we can confidently recommend to family and friends.

    Yaomin 7/19/2026

Facilities and Services

See All
  • Hot spring
  • Room with Open-Air Bath
  • Spa facility
  • Fitness
Open-air bath / Large public bath / Sauna / Free shuttle service
IN15:00~19:00
OUT11:00
Number of rooms80 rooms
PetNot allowed
Your childPermitted

Notice from the Accommodation



The heated pool “Waterland” in the main building of the adjacent Toya Sun Palace Resort & Spa may be unavailable during certain periods due to equipment maintenance and renovation work.
For details, please refer to the “News” section on the Hotel’s official website.

---------------------------


We will revise our Hotel’s cancellation policy as follows.
[Effective Date] Applies from Sunday, February 1, 2026
[Eligible Reservations] Guests who make a Reservation on or after February 1, 2026

-----------------------------

Starting with stays from April 1, 2026, an Accommodation Tax will be introduced at Accommodations in Hokkaido.

■Tax Start Date
Applies to stays from April 1, 2026
*Even if you Complete the Reservation before April 1, 2026, the Accommodation Tax will apply to stays on or after April 1.

------------------------------

*For details, please refer to “Notices from the Accommodation” at the bottom of this page.

[Early Reservation 90] [Standard] Enjoy Chef's Specially Selected Dishes and Seasonal Flavors / Dinner and Breakfast Buffet

IN 15:00~18:00
OUT 11:00
¥62,600~
Dinner and Breakfast included ; 2 peopleTax included¥61,348〜
(USD 388.14)

【Early Reservation 60】【Standard】Enjoy Chef's Specially Selected Dishes and Seasonal Flavors / Dinner and Breakfast Buffet

IN 15:00~18:00
OUT 11:00
¥63,000~
Dinner and Breakfast included ; 2 peopleTax included¥61,740〜
(USD 390.62)

[Early Reservation 90] [Standard] Enjoy Chef's Specially Selected Dishes and Seasonal Flavors / Dinner and Breakfast Buffet

IN 15:00~18:00
OUT 11:00
¥62,600~
Dinner and Breakfast included ; 2 peopleTax included¥61,348〜
(USD 388.14)

【Early Reservation 60】【Standard】Enjoy Chef's Specially Selected Dishes and Seasonal Flavors / Dinner and Breakfast Buffet

IN 15:00~18:00
OUT 11:00
¥63,000~
Dinner and Breakfast included ; 2 peopleTax included¥61,740〜
(USD 390.62)

[Early Reservation 90] [Standard] Enjoy Chef's Specially Selected Dishes and Seasonal Flavors / Dinner and Breakfast Buffet

IN 15:00~18:00
OUT 11:00
¥62,600~
Dinner and Breakfast included ; 2 peopleTax included¥61,348〜
(USD 388.14)

【Early Reservation 60】【Standard】Enjoy Chef's Specially Selected Dishes and Seasonal Flavors / Dinner and Breakfast Buffet

IN 15:00~18:00
OUT 11:00
¥63,000~
Dinner and Breakfast included ; 2 peopleTax included¥61,740〜
(USD 390.62)

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Accommodation With Breakfast And Dinner Buffet

Introduction of the Accommodation

Image

Living in Lake Tōya

A tranquil morning lake, with clear air and soft sunlight illuminating the water. This is the closest location to the lake, a top-class place resonating with the lake - "The Lake Suite."

An example of the view from the room.

Room

All rooms are equipped with an open-air Onsen and a 9.5-square-meter infinity-designed terrace.

Bathroom image

Bathroom

The vast nature of Toya stretches out before you. Experience a blissful moment of relaxation with an overwhelming sense of freedom and breathtaking views from above.

Shinrin Dining
the洞爺
Shinrin Dining
the洞爺

the洞爺

Meal

Two restaurants to enjoy the lake and forest of Toya. We offer "Shinrin Dining," a half-buffet restaurant, and "The Toya," where you can savor a refined Japanese Kaiseki meal while connecting with the serene lake atmosphere.

Corridor

Facility and Services

Immerse yourself in the nature of Toya and enjoy a relaxing time. The entrance features a corridor floating on water, with the soothing sound of waterfalls cascading down water walls, inviting you to an extraordinary experience.

Facilities and Equipment of Accommodation

  • The room
    The room
  • Hot Springs & Baths
    Hot Springs & Baths
  • Facilities & Services
    Facilities & Services
  • Meal
    Meal

Notice from the Accommodation

  • Notice of Changes to the Cancellation Policy / Notice of Temporary Closure Dates /

    Thank you for your continued patronage of The Lake Suite Ko no Sumika.
    We will be revising our Hotel cancellation policy as outlined below.

    [Effective Date] Applies from Sunday, February 1, 2026
    [Eligible Reservations] Reservations made on or after February 1, 2026

    [Details]
    Before the change
    4 days before check-in: Cancellation free of charge
    3 days before check-in: 20% of the total rate
    On the day of check-in: 80% of the total rate
    No-show (no notice): 100% of the total rate


    After the change
    15 days before check-in: Cancellation free of charge
    14 days before check-in: 20% of the total rate
    7 days before check-in: 50% of the total rate
    On the day of check-in: 80% of the total rate
    No-show (no notice): 100% of the total rate

    We appreciate your understanding as we strive to maintain our services so that more guests can enjoy a comfortable stay.

    -----------------------------------------------
    Notice for 2026 [Temporary Closure Dates]: Facility Maintenance

    Please note that we will be temporarily closed on the dates below due to Facility maintenance.

    [Closure Period]
    From after check-out on Tuesday, November 10, 2026 to Thursday, November 12, 2026

    During this period, Accommodation stays and all on-site operations will be suspended.
    *We will resume operations from Friday, November 13 (check-in).

    We sincerely apologize for any inconvenience and appreciate your kind understanding.
    -----------------------------------------------

  • Annex Ezo Fuji is scheduled to open in December 2027.

    We are pleased to announce the opening of our new accommodation brand, “Bettei Ezo Fuji.”

    This new luxury resort will be located adjacent to “The Lake Suite Ko no Sumika” and “Toya Sun Palace Resort & Spa.” Taking full advantage of its setting overlooking the magnificent nature of Lake Toya and the iconic view of Mt. Yotei—also known as “Ezo Fuji”—the resort will offer a serene, refined stay experience.

    The property will feature 61 guest rooms in total, including spacious suite-style rooms of over 104 m². Every room includes an open-air bath and a large terrace, allowing you to enjoy Hokkaido’s ever-changing seasonal scenery up close.

    During the construction period, “The Lake Suite Ko no Sumika” and “Toya Sun Palace Resort & Spa” are scheduled to remain open as usual.
    We will enforce strict safety management and proceed with construction while minimizing any impact on our guests.

    *There will be no restrictions on use of the facilities due to construction.

    [Construction Period] April 2026 – late December 2027 (planned)
    *Monday–Saturday (closed Sundays and public holidays)
    *Hours: 8:00–19:00
    *Please note that louder noise may occur especially between 11:00–17:00.
    *The schedule is subject to change depending on construction progress.
    If there are any changes, we will post an update accordingly.

    We sincerely apologize for any inconvenience this may cause and appreciate your kind understanding and cooperation.

Basic Information

Card information
VISA / MASTER / JCB / AMEX / DINERS
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
Available
Fitness gym
Business Hours
---
Final admission time
--
Fee(Guest)
Free
Fee(Non-guest)
---
Age restriction
Public Bath
The number of Public Bath
2
Business Hours
---
Hot spring
Available
Free-flowing
None
Milky hot spring water
None
Additional Information
(Heating, Adding Water)
Remarks
Open-air bath
The number of Open-air bath
2
Business Hours
---
Hot spring
Available
Free-flowing
None
Milky hot spring water
None
Additional Information
(Heating, Adding Water)
Remarks
Room with Open-Air Bath
Hot spring
Available
Free-flowing
None
Milky hot spring water
None
Additional Information
(Add water)
Remarks
Spring quality and benefits

Sodium Chloride Spring, Sulfate Onsen, Sodium Spring

Muscle Pain, Nerve Pain, and Gynecological Conditions

SaunaAvailable
Hot stone spaNone
Others[Other Accepted Cards] UC, DC, NICOS, OMC, UFJ Card

Reviews

Overall Score
4.34
Good (180)
  • Rooms & Amenities
    4.48
  • Facility
    4.42
  • Hospitality & Service
    4.38
  • Meals
    3.87
  • Onsen & Bath
    4.66
  • Satisfaction
    4.22

*Reviews that have been translated from Japanese.*

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

Access Information

Address
Hokkaido7-1 Toyako Onsen, Sobetsu-cho, Usu-gun
TEL:+81-142-82-4121

Approximately 20 minutes by car from JR Toya Station
*No Shuttle Service is available from Toya Station. Please use a taxi or a paid local bus.*

Parking Information
Fee
Free for guests
Parking time
---
Parking space
No restrictions
Number of parking spaces
---
Valet service
Unavailable
No reservation required

Pickup and drop-off information
Available (Free)We operate a free Shuttle Service bus from central Sapporo.
Please check the Hotel’s official website and make a Reservation with the Hotel in advance (reservations close once full).

*Due to limited vehicles and seating capacity, we may be unable to accommodate your request if the service is already full.
*We cannot arrange this even if you write a message in the remarks section.

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