Hokkaido Nakashibetsu Town
A natural onsen inn fed straight from the source, where you slip into a clear stream after the sauna
Yuyado Daiichi is an onsen inn in Nakashibetsu, Hokkaido. Cradled by deep forest and the clear waters of the Shibetsu River, its large mixed-gender open-air bath is built of rock with almost nothing separating it from the river, and sitting in it feels like becoming part of nature. The men’s bath has a log tub carved from spruce several hundred years old, and the women’s bath has an open-air bath of stacked rock. Both hold natural onsen water fed straight from the source, never recirculated. With six saunas across the men’s and women’s sides, the inn won the 2025 Grand Prix at SAUNACHELIN, Japan’s largest sauna award. The standout is a sauna where water from the source pours down inside the room like a waterfall. Through a large window you look out on the Shibetsu River while wrapped in moist heat from löyly that never stops. Once you have soaked up the heat, you slip straight into the river flowing right beside the open-air bath.

The main bathhouse combines indoor and open-air baths. The men’s bath has a custom log tub carved from Canadian spruce several hundred years old, and the warmth of the wood rises together with the scent of the water. The women’s bath is an open-air bath of stacked natural rock, where you can soak while listening to the murmur of the mountain stream and the calls of wild birds. The water is natural onsen water, a sodium-calcium chloride-sulfate spring. Flowing in continuously, it leaves your skin smooth, and the warmth lingers long after you get out.

Found in both the men’s and women’s baths, this is the sauna that defines the inn. Water from the source keeps pouring down inside the room like a waterfall, and its heat rises straight up as steam, so the room stays in a constant state of löyly without anyone having to pour water. Soft, moisture-laden air wraps your whole body, and with every breath the warmth reaches deeper into your core. Beyond the large window flows the Shibetsu River, and as you give yourself over to the heat, you have the view of the clear stream all to yourself.

A steam room filled with white vapor. Air carrying the warmth of the onsen water wraps your skin in moisture, and each deep breath gently soothes you all the way down your throat. The heat never drives you out, and as you sit, the stiffness in your shoulders and neck slowly eases. The scent of the water and the stillness of the forest blend together as the time passes gently.

A dry sauna in the men’s indoor bath, named after the Blakiston’s fish owl, the symbol of the inn. A convection stove piled with the sauna stones slowly bakes the room, and the steam rising from löyly presses the heat deeper into your body with every breath. True to its dark-night name, the room is quiet, free of stray light and sound. As you close your eyes and give yourself over to the heat, your mind gradually settles inward.

A wood-fired sauna built from a converted trailer, set in the men’s open-air area. The heat rising with the crackle of burning firewood has a certain wildness to it, enveloping the body with a depth and flicker that electric heat lacks. You can pour water over the stones yourself, and each time, white steam billows up at once as the scent of wood mingles with the smell of fire. Inside this small box set outdoors, you spend intense, concentrated time with nothing but the presence of the forest and the heat of the fire.

The cold plunge sits right in front of you as you step out of the indoor sauna. It is deep enough to sink in up to your shoulders while standing, so your flushed body is wrapped in cold from head to toe. Because it is filled with onsen water that has been cooled, the cold is gentle on the skin, and you can stay in for a long time without holding your breath. In the quiet indoor bath, you can savor the feeling of the heat slowly draining away.

The cold plunge lies just outside the sauna in the open-air area. It is big enough for several people to sit side by side, and as you sink in, exposed to the outside air, the cold and the wind draw away your heat together. Filled with cooled onsen water, it feels soft on the skin, and your breathing stays calm as you settle in. The sky opens overhead, and air carrying the scent of the forest drifts over your cooling body.

You can slip straight into the river flowing right beside the open-air bath. The heat stored up in the sauna gives way the instant it meets the endlessly flowing clear stream, and an overwhelming rush of refreshment runs through your whole body. Instead of a tank whose temperature is managed by people, nature itself, changing with every season, becomes the cooling system. Even in midsummer the cold pulls the body taut to the core, and in winter a breathtaking chill awaits. It is a cold plunge that could exist nowhere else, found only at this inn.
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Irregular Holidays
By car
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Visited by the Editor-in-Chief
The Editor-in-Chief visited in person in August 2026
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