Enjoy open-air baths overlooking the spectacular scenery of the Kiso River and one of Japan's largest stone spa areas
Gifu Kani City
"Yunohana Island" is a large spa resort located within the scenic Kiso River Quasi-National Park in Kani City, Gifu Prefecture. Its natural hot spring, gushing up from 1,800 m underground, is known for its rich, highly mineralized water, and its open-air baths, where you can soak while gazing out over the dynamic flow of the Kiso River below, are the main attraction. The sauna area offers two types of saunas: a high-temperature sauna equipped with twin far-infrared stoves, and a salt sauna with strong beauty benefits. It also boasts one of Japan's largest stone spa areas, with a total of 10 varieties, including an outdoor dome, and has gained popularity as an "island of healing" where you can spend the whole day enjoying yourself.
TypeNatural Hot Spring
A calcium-sodium chloride spring gushing up from 1,800 m underground. With its high salt content, it offers excellent heat retention and moisturizing effects, making it hard to cool down after bathing. The open-air rock bath, where you can soak while listening to the murmuring of the Kiso River, offers an outstanding sense of openness and refreshes both body and mind.
Sauna TypeDry Sauna
Stove TypeInfrared Heater
Capacity20people
A powerful sauna equipped with two far-infrared stoves. Miyakejima lava stone is used on the walls, and the far-infrared rays it emits efficiently warm the body and promote a torrent of perspiration. A large TV is installed inside, and healing music also plays, creating a comfortable space where you can work up a sweat.
Sauna TypeSalt Sauna
Capacity6people
A salt sauna with a mild temperature, ideal for gradually warming up. By applying the provided salt to your skin, you can help lift away dirt from the pores and leave your skin smooth and refreshed. Perfect for those who find high-temperature saunas difficult, or for anyone who wants to enjoy beauty care while relaxing.
Water QualityTap Water
Capacity5people
A cold plunge bath located right next to the high-temperature sauna. The well-chilled water tightens the body after sauna use and leads you into deep relaxation. It is spacious enough to let you cool down comfortably even when it is busy.
Closed Days: None
〒509-0206 Gifu Prefecture, Kani City, Tsuchida 4800-1
Gender Access
Gender Separated
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
Enjoy open-air baths overlooking the spectacular scenery of the Kiso River and one of Japan's largest stone spa areas
Gifu Kani City
"Yunohana Island" is a large spa resort located within the scenic Kiso River Quasi-National Park in Kani City, Gifu Prefecture. Its natural hot spring, gushing up from 1,800 m underground, is known for its rich, highly mineralized water, and its open-air baths, where you can soak while gazing out over the dynamic flow of the Kiso River below, are the main attraction. The sauna area offers two types of saunas: a high-temperature sauna equipped with twin far-infrared stoves, and a salt sauna with strong beauty benefits. It also boasts one of Japan's largest stone spa areas, with a total of 10 varieties, including an outdoor dome, and has gained popularity as an "island of healing" where you can spend the whole day enjoying yourself.
TypeNatural Hot Spring
A calcium-sodium chloride spring gushing up from 1,800 m underground. With its high salt content, it offers excellent heat retention and moisturizing effects, making it hard to cool down after bathing. The open-air rock bath, where you can soak while listening to the murmuring of the Kiso River, offers an outstanding sense of openness and refreshes both body and mind.
Sauna TypeDry Sauna
Stove TypeInfrared Heater
Capacity20people
A powerful sauna equipped with two far-infrared stoves. Miyakejima lava stone is used on the walls, and the far-infrared rays it emits efficiently warm the body and promote a torrent of perspiration. A large TV is installed inside, and healing music also plays, creating a comfortable space where you can work up a sweat.
Sauna TypeSalt Sauna
Capacity6people
A salt sauna with a mild temperature, ideal for gradually warming up. By applying the provided salt to your skin, you can help lift away dirt from the pores and leave your skin smooth and refreshed. Perfect for those who find high-temperature saunas difficult, or for anyone who wants to enjoy beauty care while relaxing.
Water QualityTap Water
Capacity5people
A cold plunge bath located right next to the high-temperature sauna. The well-chilled water tightens the body after sauna use and leads you into deep relaxation. It is spacious enough to let you cool down comfortably even when it is busy.
Closed Days: None
〒509-0206 Gifu Prefecture, Kani City, Tsuchida 4800-1
Gender Access
Gender Separated
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