Panoramic open-air baths overlooking the mountains of Shinshu and in-room löyly saunas
Nagano Yamanouchi Town
"Yudanaka Onsen Aburaya Tousen" is a hot spring ryokan in Yamanouchi Town, Shimotakai District, Nagano Prefecture. It features a विशाल 1,000㎡ public bath floor, "Yumeji no Yu" and "Yumemi no Yu," overlooking the Yokayase River and the mountains of Shinshu. Guests can enjoy a mixed assortment of baths, including an open-air bath that glows in seven colors at night, a reclining bath, a full-fledged dry sauna, and a refreshing cold plunge bath. There are also top-tier guest rooms equipped with a private löyly sauna and an open-air hot spring bath, making for an exceptional stay of secluded relaxation. Another highlight is the sophisticated adult relaxation space, including a rooftop bar on the top floor.
TypeNatural Hot Spring
A rich natural hot spring of sodium chloride spring (alkaline hypotonic high-temperature spring). In the expansive 1,000㎡ bath floor, you can fully enjoy the blessings of Yudanaka Onsen through a variety of baths, including a large bath overlooking the Shinshu mountain range, a fantastical open-air bath that glows beautifully in seven colors at night, a reclining bath, and a massage bath. Men and women alternate use.
TypeNatural Hot Spring
A private open-air bath where you can enjoy magnificent scenery and feel the clear natural beauty of Yudanaka all to yourself. Soak in the high-quality chloride spring without worrying about anyone else, and spend a leisurely, relaxing moment with someone special.
Sauna TypeDry Sauna
Stove TypeConvection Stove (Sauna Stone)
Capacity12people
A full-fledged, arid-style dry sauna in the public bath area. Self-löyly is also available, allowing you to raise the perceived temperature and work up a solid sweat. As you occasionally gaze out at the mountains beyond the windows, you can relax and enjoy a blissful sauna time. Sauna hours are from 3:00 p.m. to 10:00 p.m.
Water QualityTap Water
Capacity2people
The cold plunge bath in the public bath area gently releases excess heat from a body warmed deep to the core in the sauna. Its mild chill is wonderfully refreshing. Combine it with an outdoor-air bath in the open-air area, where the pleasant river breeze of Shinshu blows through, and you will be wrapped in unparalleled爽快感.
24 Hours
Closed Days: Unknown
381-0402 2586-5 Sano, Yamanouchi Town, Shimotakai District, Nagano Prefecture
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 morePanoramic open-air baths overlooking the mountains of Shinshu and in-room löyly saunas
Nagano Yamanouchi Town
"Yudanaka Onsen Aburaya Tousen" is a hot spring ryokan in Yamanouchi Town, Shimotakai District, Nagano Prefecture. It features a विशाल 1,000㎡ public bath floor, "Yumeji no Yu" and "Yumemi no Yu," overlooking the Yokayase River and the mountains of Shinshu. Guests can enjoy a mixed assortment of baths, including an open-air bath that glows in seven colors at night, a reclining bath, a full-fledged dry sauna, and a refreshing cold plunge bath. There are also top-tier guest rooms equipped with a private löyly sauna and an open-air hot spring bath, making for an exceptional stay of secluded relaxation. Another highlight is the sophisticated adult relaxation space, including a rooftop bar on the top floor.
TypeNatural Hot Spring
A rich natural hot spring of sodium chloride spring (alkaline hypotonic high-temperature spring). In the expansive 1,000㎡ bath floor, you can fully enjoy the blessings of Yudanaka Onsen through a variety of baths, including a large bath overlooking the Shinshu mountain range, a fantastical open-air bath that glows beautifully in seven colors at night, a reclining bath, and a massage bath. Men and women alternate use.
TypeNatural Hot Spring
A private open-air bath where you can enjoy magnificent scenery and feel the clear natural beauty of Yudanaka all to yourself. Soak in the high-quality chloride spring without worrying about anyone else, and spend a leisurely, relaxing moment with someone special.
Sauna TypeDry Sauna
Stove TypeConvection Stove (Sauna Stone)
Capacity12people
A full-fledged, arid-style dry sauna in the public bath area. Self-löyly is also available, allowing you to raise the perceived temperature and work up a solid sweat. As you occasionally gaze out at the mountains beyond the windows, you can relax and enjoy a blissful sauna time. Sauna hours are from 3:00 p.m. to 10:00 p.m.
Water QualityTap Water
Capacity2people
The cold plunge bath in the public bath area gently releases excess heat from a body warmed deep to the core in the sauna. Its mild chill is wonderfully refreshing. Combine it with an outdoor-air bath in the open-air area, where the pleasant river breeze of Shinshu blows through, and you will be wrapped in unparalleled爽快感.
24 Hours
Closed Days: Unknown
381-0402 2586-5 Sano, Yamanouchi Town, Shimotakai District, Nagano Prefecture
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