Hokkaido Kushiro City
A premier resort where you can enjoy the breathtaking views of Lake Akan and natural hot springs
"Akanko Yukononi Tsuruga" is a hot spring ryokan in Kushiro, Hokkaido. Located in a superb setting overlooking Lake Akan and the Akan mountain range, it offers a wide variety of bathing facilities that let guests feel at one with the great outdoors. The world’s first dome-shaped panoramic sauna lets you enjoy a 360-degree view while fully indulging in self-löyly, and there is also an authentic Finnish sauna as well as a mild cold plunge bath using Akan Hyakunensui. The natural hot spring, flowing directly from the source, gently loosens both body and mind. With additional facilities such as bedrock baths and esthetics, it offers a blissful wellness stay that helps you forget everyday life.

A spacious panoramic large bath and sky-open-air bath located on the 8th floor of the main building. You can enjoy a grand open-air bathing experience while looking out over the vast panorama of eastern Hokkaido shaped by Lake Akan and the Akan mountain range. High-quality hot spring water with excellent warming effects gently moisturizes the skin, and you can spend a blissful time easing fatigue from both body and mind while feeling the breath of nature.

A vast large bath that extends from the first floor of the main building down to the basement, one of Tsuruga’s prides. It includes a garden open-air bath that lets you feel in harmony with Lake Akan, along with a variety of baths with different atmospheres. Rich, high-quality hot spring water overflows continuously, and you can enjoy bathing around in a refined Japanese-style space. This superb hot spring experience gently invites you into true relaxation as you surrender yourself to the skin-friendly waters.

A spacious large bath centered on indoor baths, with names such as "Matneshiri," the Ainu word for Mount Meakan. Ainu stories are depicted on the walls, allowing guests to bathe while feeling the culture unique to this land. The superb spring quality of sodium-magnesium-calcium bicarbonate hot spring water flows pleasantly over the skin, and you can refresh to your heart’s content in a quiet and calming space.

A private bath rental where you can enjoy the hot spring at your leisure in a private space without worrying about other people’s eyes. With family or someone special, you can savor the high-quality water at a relaxed pace. In a calm atmosphere wrapped in silence, you can spend a special, private bathing time for just the two of you, undisturbed by anyone, and enjoy a truly soothing moment of relaxation.

A luxurious open-air bath provided exclusively in the guest room. While taking in Akan’s beautiful seasonal scenery, you can enjoy the hot spring as often as you like, whenever you like. The private time spent soaking in the bath while feeling the natural breeze is exceptional, promising an ultimate resort stay free from any interruption. It will be an unforgettable stay, shaped by premium water and spectacular views.

A world-first dome-shaped sauna installed on the rooftop using insulated double glazing. The 360-degree all-glass design allows bathing while looking out over Akan’s majestic nature by day and the beautiful starry sky by night. With self-löyly using aroma water, you can adjust the humidity to your preference and enjoy an exceptional sense of immersion and deep relaxation, as if wrapped in nature itself.

An authentic Finnish sauna crafted with careful attention to every detail, from lighting and fragrance to humidity and design. Monotone stone materials and a blacked-out ceiling create a simple, modern meditative space. A periodically activated mist function and aroma oils provide a soothing fragrance experience, and the curved seating lets you relax deeply in both body and mind.

A skin-friendly mist sauna filled with fine steam. Gentle heat and abundant humidity envelop the entire body, allowing you to warm up thoroughly without feeling stifled. Even those who are not fond of the intense heat of a dry sauna can enjoy it comfortably, and the moisture-rich steam leaves skin and hair supple and hydrated, making it a calm refreshment space.

An authentic Finnish sauna with a tranquil cave-inspired atmosphere. Soft indirect lighting enhances the healing effect, while regular auto-mist and the aroma of essential oils gently fill the room. The specially designed seating, with angled backrests, makes breathing easier and encourages effective sweating. It is a refined setting where you can step away from the noise of everyday life and quietly face yourself.

A classic high-temperature dry sauna that delivers a strong sense of heat. In the low-humidity room, your body temperature rises quickly and refreshing sweat pours out from head to toe. It promotes circulation and helps you neatly reset accumulated fatigue. This is a classic sauna experience, ideal when you want to warm up fully in powerful heat.

A sauna located within the large bath area decorated with Ainu stories. Using it together with a hot spring bath is expected to enhance sweating and promote circulation more effectively. After warming up thoroughly, you can cool down leisurely in the spacious bath area and enjoy a blissful moment that eases both body and mind.

A cold plunge bath luxuriously filled with Akanko Hyakunensui, a water source nurtured over many years by the forest of Akan. Its mild groundwater quality is a defining feature, gently yet firmly tightening a body heated by the sauna. The water feels exceptionally soft on the skin, offering a refreshing coolness that remains pleasant even in its coldness. Being surrounded by this superb water lets you experience the ultimate cool-down.

A full-featured bedrock bath area where repeated cycles of warming and cooling help you sweat in a healthy way. Wearing dedicated clothing, men and women can use the space together and move through a variety of areas such as high-temperature and low-temperature bedrock baths, a spacious bedrock lounge, and a cool room. Natural stones emit far-infrared rays that warm you from the core, allowing you to enjoy a detox time away from the noise of daily life and calmly face yourself.

A luxurious private high-temperature bedrock bath space available only to women. The aroma of roses and herbs fills the air, bringing a deep sense of relaxation. By warming the body thoroughly while wrapped in a pleasant fragrance, metabolism is boosted and both body and mind are beautifully refreshed. You can enjoy an elegant wellness time unique to women without worrying about those around you.
Availability and rates are shown on each booking site.
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The main building alternates between men and women on odd and even days.
By car
By train and bus
Shuttle service
The parking lot is located away from the inn. Guests drive their own cars to the parking lot, and when departing they are taken back to the parking lot by shuttle bus.
Visited by the Editor-in-Chief
The Editor-in-Chief visited in person in August 2026
The final destination where you reboot as a human being
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