A hot spring inn where all five senses are soothed by breathtaking infinity open-air baths and open-air hot spring baths in every room
Kanagawa Hakone Town, Ashigarashimo District
"Hakone Kowakien Ten-yu" is a hot spring ryokan in Hakone Town, Ashigarashimo District, Kanagawa Prefecture. This luxury inn offers a sense of private tranquility, with a Shigaraki-ware open-air hot spring bath in every guest room. The mixed-gender bath area, which changes daily for men and women, is especially appealing. On the 6th floor, "Uki-gumo no Yu" features an infinity open-air bath with unobstructed views of the Hakone Outer Rim Mountains spread out before you, while on the 5th floor, "Kurumazawa no Yu" lets you enjoy a bath while gazing at the dramatically cascading "Gobo no Taki". Each bath area is equipped with a dry sauna and a cold plunge bath, offering a luxurious totonou experience in the presence of nature.
TypeNatural Hot Spring
A public bath located on the 6th floor. Its open-air bath consists of two tubs set at different levels, allowing you to enjoy an infinity hot spring with an expansive sense of openness, as if the Hakone Outer Rim Mountains and the sky are connected as one. This spectacular bath lets you soak while being enveloped in an extraordinary feeling of floating in the sky.
TypeNatural Hot Spring
A public bath located on the 5th floor. Facing the lush valley of Kurumazawa, it is right beside Gobo no Taki, a waterfall cherished in this area since the Showa era. You can listen up close to the powerful sound of the falls while luxuriating in negative ions, in a healing space where forest bathing and hot spring bathing are perfectly united.
TypeNatural Hot Spring
A luxurious open-air hot spring bath made of Shigaraki ware, installed on the terrace of every guest room. It offers the promise of a private space, letting you enjoy a superb famous hot spring whenever you like, all to yourself, while taking in views of the outer rim mountains such as Myojogatake, the lush valley scenery, and the clear Hakone breeze right before your eyes.
Sauna TypeDry Sauna
Stove TypeConvection Stove (Sauna Stone)
Capacity12people
A dry sauna equipped in each bath area of the 5th-floor "Kurumazawa no Yu" and 6th-floor "Uki-gumo no Yu". A full-fledged convection stove heated by sauna stones creates a well-balanced mix of humidity and heat for a high-quality warming experience. In a quiet, compact room without a TV, it offers a calm space where you can face yourself while working up a good sweat.
Water QualityTap Water
Capacity2people
A cold plunge bath located just outside the sauna room. The gentle water temperature means there is no excessive coldness, allowing you to enjoy a soothing, cool sensation that wraps around the body. You can cool down slowly and comfortably, and even those who are not fond of cold baths can safely enjoy a refreshing, tightening sensation.
Closed Days: None
〒250-0407 1297 Ninotaira, Hakone Town, Ashigarashimo District, Kanagawa 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 moreA hot spring inn where all five senses are soothed by breathtaking infinity open-air baths and open-air hot spring baths in every room
Kanagawa Hakone Town, Ashigarashimo District
"Hakone Kowakien Ten-yu" is a hot spring ryokan in Hakone Town, Ashigarashimo District, Kanagawa Prefecture. This luxury inn offers a sense of private tranquility, with a Shigaraki-ware open-air hot spring bath in every guest room. The mixed-gender bath area, which changes daily for men and women, is especially appealing. On the 6th floor, "Uki-gumo no Yu" features an infinity open-air bath with unobstructed views of the Hakone Outer Rim Mountains spread out before you, while on the 5th floor, "Kurumazawa no Yu" lets you enjoy a bath while gazing at the dramatically cascading "Gobo no Taki". Each bath area is equipped with a dry sauna and a cold plunge bath, offering a luxurious totonou experience in the presence of nature.
TypeNatural Hot Spring
A public bath located on the 6th floor. Its open-air bath consists of two tubs set at different levels, allowing you to enjoy an infinity hot spring with an expansive sense of openness, as if the Hakone Outer Rim Mountains and the sky are connected as one. This spectacular bath lets you soak while being enveloped in an extraordinary feeling of floating in the sky.
TypeNatural Hot Spring
A public bath located on the 5th floor. Facing the lush valley of Kurumazawa, it is right beside Gobo no Taki, a waterfall cherished in this area since the Showa era. You can listen up close to the powerful sound of the falls while luxuriating in negative ions, in a healing space where forest bathing and hot spring bathing are perfectly united.
TypeNatural Hot Spring
A luxurious open-air hot spring bath made of Shigaraki ware, installed on the terrace of every guest room. It offers the promise of a private space, letting you enjoy a superb famous hot spring whenever you like, all to yourself, while taking in views of the outer rim mountains such as Myojogatake, the lush valley scenery, and the clear Hakone breeze right before your eyes.
Sauna TypeDry Sauna
Stove TypeConvection Stove (Sauna Stone)
Capacity12people
A dry sauna equipped in each bath area of the 5th-floor "Kurumazawa no Yu" and 6th-floor "Uki-gumo no Yu". A full-fledged convection stove heated by sauna stones creates a well-balanced mix of humidity and heat for a high-quality warming experience. In a quiet, compact room without a TV, it offers a calm space where you can face yourself while working up a good sweat.
Water QualityTap Water
Capacity2people
A cold plunge bath located just outside the sauna room. The gentle water temperature means there is no excessive coldness, allowing you to enjoy a soothing, cool sensation that wraps around the body. You can cool down slowly and comfortably, and even those who are not fond of cold baths can safely enjoy a refreshing, tightening sensation.
Closed Days: None
〒250-0407 1297 Ninotaira, Hakone Town, Ashigarashimo District, Kanagawa 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