Nagano Komoro City
A spectacular onsen above the clouds, reached by a private mountain railway, and panoramas of untouched nature
Hishino Onsen Tokiwakan is an onsen inn at the foot of Mount Asama in Komoro, Nagano Prefecture. It is best known for its panoramic open-air bath above the clouds, which you reach by riding the inn’s own mountain railway up from the main building. An infinity open-air bath that melts into the sky and forest, and a cold plunge filled with clear spring water from the Asama watershed, let you leave everyday life behind and become one with a sweeping panorama in a truly exceptional bathing experience. Some guest rooms come with a semi-open-air bath, so you can relax at leisure in a space all your own.

A breathtaking open-air bath above the clouds that appears at the top of a steep slope, reached by the inn’s own mountain railway. From the infinity open-air bath made of koyamaki (Japanese umbrella pine), an unobstructed panorama spreads out before you, for an almost mystical soak that feels like floating in the sky. Steeping in these celebrated waters with their long history, you can spend a luxurious stretch of time with the beauty of the sky and forest all to yourself.

A private semi-open-air bath in the maisonette-style guest rooms. A ceramic tub of your own waits on the lower level of the spacious room, so you can enjoy a special soak just for yourselves without worrying about anyone watching. The changing area has its own massage chair too, so after your bath you can carry straight on into a deeply relaxing time.

Set beside the panoramic open-air bath, the cold plunge is filled with clear natural water from the Asama watershed. Its pleasant chill feels wonderfully refreshing as the cold pulls your onsen-warmed body taut. Afterward, spend time cooling off in the open air in the cool-down area, where you can feel the voices of the forest and the highland breeze on your skin, for a blissful relaxation that seems to merge you deeply with the natural world.
Availability and rates are shown on each booking site.
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(Day-visit bathing) 11:00–14:30 (last entry; on weekdays outside August, last entry is 16:00)
By car
By train and bus
Shuttle
Free parking for 80 cars (uncovered)
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