TheLakeSuiteKonoSumika

An infinity open-air bath floating on Lake Toya and a sky sauna with spectacular views

Hokkaido Sobetsu Town

"The Lake Suite Ko no Sumika" is a luxurious resort hotel nestled right beside Lake Toya in Hokkaido, with an open-air hot spring bath in every room. On the top 8th floor, the "Open-Air Bath Floating in the Sky, Kohan no Yu" features a three-tiered, terraced infinity design that lets guests feel perfectly united with Lake Toya. Inside the large bath area, there is a spectacular dry sauna with panoramic views of the eternal Lake Toya through the windows, a superb cold plunge bath using lake water at around 10 to 12 degrees Celsius, and a relaxing terrace lounge for post-bath rest.

Hot Spring & Bath Information

Toya-ko Onsen

TypeNatural Hot Spring

Flow-through

From the terraced infinity open-air bath in the large bath, Kohan no Yu, you can enjoy a breathtaking soak with a sweeping, unobstructed panorama of Lake Toya and the clear blue sky. The spring quality is known for excellent warming and moisturizing effects, leaving your skin soft and hydrated. Every room terrace is equipped with a private in-room open-air hot spring bath with free-flowing natural spring water, allowing you to indulge in it whenever you like, 24 hours a day.

Sauna

Sky Panorama Sauna

90°C

Sauna TypeDry Sauna

Stove TypeConvection Stove (Sauna Stone)

Capacity8people

Men'sWomen's

A spectacular dry sauna located inside the large bath on the top 8th floor, offering panoramic views of the eternal Lake Toya through the windows. The room temperature is maintained at around 90 to 95 degrees Celsius, making it a pleasant place to sweat deeply while watching TV. Right by the entrance, a refrigerator stocked with well-chilled mineral water is provided, reflecting the meticulous hospitality and attention to detail throughout.

Cold Bath

Cold Bath

12°C

Water QualityNatural Water (Groundwater, Spring, etc.)

Capacity2people

Men'sWomen's

A superb cold plunge bath that makes lavish use of water drawn directly from the natural Lake Toya, giving it an exceptionally smooth feel on the skin. The water temperature is consistently kept in a cool range of around 10 to 12 degrees Celsius, rapidly and refreshingly cooling down your heated body after the sauna. The open-air area is equipped with comfortable relaxation chairs, allowing you to enjoy an outstanding sky-high outdoor air bath while gazing at the stars and the lake.

Business Hours

Monday
15:00〜01:00
05:00〜11:00
Tuesday
15:00〜01:00
05:00〜11:00
Wednesday
15:00〜01:00
05:00〜11:00
Thursday
15:00〜01:00
05:00〜11:00
Friday
15:00〜01:00
05:00〜11:00
Saturday
15:00〜01:00
05:00〜11:00
Sunday
15:00〜01:00
05:00〜11:00
Holiday
15:00〜01:00
05:00〜11:00
💡 Large bath and sauna hours: 15:00 to 25:00, 05:00 to 11:00 (day-use bathing is not available)

Closed Days: None

Address

〒049-5731 Hokkaido, Usu District, Sobetsu Town, Toyako Onsen 7-1

View on Google Maps

Website

https://www.konosumika.com/
Hotel & Ryokan

Gender Access

Gender Separated

❓
Tattoo Policy
Unknown (Please Check)
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