A breathtaking onsen above the clouds and an exceptional wood-fired sauna in the forest, reached by a dedicated mountain train
Nagano Komoro City
"Hishino Onsen Tokiwakan" is an onsen inn at the foot of Mt. Asama in Komoro, Nagano Prefecture. Its signature attraction is "Kumo no Suke," a scenic open-air bath at an elevation of 1,000 m, reached by a dedicated mountain train from the main building. The newly renovated cloud-top hot spring facility "Unjō no Teishaba," opened in August 2024, features an infinity open-air bath that blends into the sky and forest, a cold plunge bath fed by the Asama water system, and the fully reservation-only outdoor wood-fired sauna "TOJIBA (Yujiba)." It offers the ultimate healing bath experience where you can forget everyday life and become one with the sweeping panorama.
TypeNatural Hot Spring
A scenic open-air bath at the top of a steep slope, reached by a mountain train that rattles its way uphill. From the infinity open-air bath "Sorafuro," made of Japanese umbrella pine wood, a vast unobstructed panorama unfolds, allowing you to savor a mystical bathing experience as if floating above the clouds. Enjoy this renowned hot spring with more than 800 years of history, together with its spectacular views.
TypeNatural Hot Spring
Located on the first floor of the main building, this spacious indoor public bath can be enjoyed at any time, 24 hours a day except during late-night cleaning. The Hishino Onsen water, with an exceptionally gentle feel on the skin, softly warms the body of guests tired from mountain climbing, sightseeing, or travel, and loosens it from the core.
Sauna TypeDry Sauna
Stove TypeConvection Stove (Sauna Stone)
Capacity6people
A fully reservation-only authentic Finnish-style wood-fired sauna, located at the Unjō no Teishaba facility reached by mountain train. In a sauna hut lavishly built from local logs, an original wood stove crackles pleasantly. In the extraordinarily high-humidity room, enjoy self-löyly with aromatic water for an exceptional sweat-inducing experience.
Water QualityNatural Water (Groundwater, Spring, etc.)
Capacity2people
A bath equipped at the scenic open-air bath Kumo no Suke, using clear spring water from the Asama water system. It is ideal for alternating hot and cold baths after warming up in the scenic hot spring. *Available freely to users of the scenic open-air bath.
Water QualityNatural Water (Groundwater, Spring, etc.)
Capacity2people
A giant wooden barrel cold plunge bath installed right next to the sauna hut. It uses mineral-rich groundwater flowing from the foot of Mt. Asama in a luxurious free-flowing system, and it is also drinkable. The bath is deep enough to submerge yourself up to your head, and its silky, extremely smooth water envelops the body gently. *For sauna users only.
Closed Days: None
〒384-0041 762-2 Hishidaira, Komoro, Nagano
Gender Access
Gender Separated
The above applies to the communal (shared) baths. At facilities with private baths or private saunas, guests with tattoos may still be able to bathe. Please check with the facility for details.
Curated by an expert who visits onsen and sauna facilities every day and has explored 300+ locations — only facilities confirmed to be truly exceptional are featured.
Learn moreA breathtaking onsen above the clouds and an exceptional wood-fired sauna in the forest, reached by a dedicated mountain train
Nagano Komoro City
"Hishino Onsen Tokiwakan" is an onsen inn at the foot of Mt. Asama in Komoro, Nagano Prefecture. Its signature attraction is "Kumo no Suke," a scenic open-air bath at an elevation of 1,000 m, reached by a dedicated mountain train from the main building. The newly renovated cloud-top hot spring facility "Unjō no Teishaba," opened in August 2024, features an infinity open-air bath that blends into the sky and forest, a cold plunge bath fed by the Asama water system, and the fully reservation-only outdoor wood-fired sauna "TOJIBA (Yujiba)." It offers the ultimate healing bath experience where you can forget everyday life and become one with the sweeping panorama.
TypeNatural Hot Spring
A scenic open-air bath at the top of a steep slope, reached by a mountain train that rattles its way uphill. From the infinity open-air bath "Sorafuro," made of Japanese umbrella pine wood, a vast unobstructed panorama unfolds, allowing you to savor a mystical bathing experience as if floating above the clouds. Enjoy this renowned hot spring with more than 800 years of history, together with its spectacular views.
TypeNatural Hot Spring
Located on the first floor of the main building, this spacious indoor public bath can be enjoyed at any time, 24 hours a day except during late-night cleaning. The Hishino Onsen water, with an exceptionally gentle feel on the skin, softly warms the body of guests tired from mountain climbing, sightseeing, or travel, and loosens it from the core.
Sauna TypeDry Sauna
Stove TypeConvection Stove (Sauna Stone)
Capacity6people
A fully reservation-only authentic Finnish-style wood-fired sauna, located at the Unjō no Teishaba facility reached by mountain train. In a sauna hut lavishly built from local logs, an original wood stove crackles pleasantly. In the extraordinarily high-humidity room, enjoy self-löyly with aromatic water for an exceptional sweat-inducing experience.
Water QualityNatural Water (Groundwater, Spring, etc.)
Capacity2people
A bath equipped at the scenic open-air bath Kumo no Suke, using clear spring water from the Asama water system. It is ideal for alternating hot and cold baths after warming up in the scenic hot spring. *Available freely to users of the scenic open-air bath.
Water QualityNatural Water (Groundwater, Spring, etc.)
Capacity2people
A giant wooden barrel cold plunge bath installed right next to the sauna hut. It uses mineral-rich groundwater flowing from the foot of Mt. Asama in a luxurious free-flowing system, and it is also drinkable. The bath is deep enough to submerge yourself up to your head, and its silky, extremely smooth water envelops the body gently. *For sauna users only.
Closed Days: None
〒384-0041 762-2 Hishidaira, Komoro, Nagano
Gender Access
Gender Separated
The above applies to the communal (shared) baths. At facilities with private baths or private saunas, guests with tattoos may still be able to bathe. Please check with the facility for details.
Curated by an expert who visits onsen and sauna facilities every day and has explored 300+ locations — only facilities confirmed to be truly exceptional are featured.
Learn more