An exquisite, silky natural spring at pH 9.7, a hidden inn wrapped in the beauty and silence of satoyama
Kumamoto Yamaga City
"Satoyama no Kakureyado Kafutei" is a hot spring inn perched on a scenic hill in Kikuka Onsen in Yamaga, Kumamoto Prefecture, surrounded by lush nature. You can enjoy the highly alkaline Beauty Bath, with a pH of 9.7, as 100% free-flowing natural spring water. It is known for its lotion-like, silky texture, and guests rave that their skin feels amazingly smooth after bathing. In addition to a warm indoor bath filled with the comforting scent of wood and an open-air bath overlooking the panoramic satoyama landscape, the facility also features a sauna and a cold plunge bath. Away from the noise of everyday life, you can spend a blissful, restorative time listening to birdsong and the sound of the wind.
TypeNatural Hot Spring
An alkaline simple weak radioactive spring with a pH of 9.7. The 100% free-flowing natural spring water is fresh and characterized by its strong, viscous texture that clings to the skin. Its skin-beautifying effect is highly regarded, and bathing while taking in the superb satoyama scenery is truly a blissful experience. You can savor this famous hot spring to your heart's content.
Sauna TypeDry Sauna
Stove TypeInfrared Heater
Capacity4people
A dry sauna with a calm atmosphere. Surrounded by the scent of wood, you can work up a good sweat at a leisurely pace. Even inside the sauna room, you can feel the quiet of satoyama and enjoy sweating while remaining relaxed in both body and mind.
Water QualityNatural Water (Groundwater, Spring, etc.)
Capacity2people
A cold plunge bath for cooling down after warming up in the sauna or hot spring. Its crisp chill feels refreshing and helps tighten your heated body. Along with the clean, refreshing quality of the water, it also supports a smooth transition to outdoor air bathing.
Closed Days: None
〒861-0423 Kumamoto Prefecture, Yamaga City, Kikuka Town, Ikenaga 177
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
An exquisite, silky natural spring at pH 9.7, a hidden inn wrapped in the beauty and silence of satoyama
Kumamoto Yamaga City
"Satoyama no Kakureyado Kafutei" is a hot spring inn perched on a scenic hill in Kikuka Onsen in Yamaga, Kumamoto Prefecture, surrounded by lush nature. You can enjoy the highly alkaline Beauty Bath, with a pH of 9.7, as 100% free-flowing natural spring water. It is known for its lotion-like, silky texture, and guests rave that their skin feels amazingly smooth after bathing. In addition to a warm indoor bath filled with the comforting scent of wood and an open-air bath overlooking the panoramic satoyama landscape, the facility also features a sauna and a cold plunge bath. Away from the noise of everyday life, you can spend a blissful, restorative time listening to birdsong and the sound of the wind.
TypeNatural Hot Spring
An alkaline simple weak radioactive spring with a pH of 9.7. The 100% free-flowing natural spring water is fresh and characterized by its strong, viscous texture that clings to the skin. Its skin-beautifying effect is highly regarded, and bathing while taking in the superb satoyama scenery is truly a blissful experience. You can savor this famous hot spring to your heart's content.
Sauna TypeDry Sauna
Stove TypeInfrared Heater
Capacity4people
A dry sauna with a calm atmosphere. Surrounded by the scent of wood, you can work up a good sweat at a leisurely pace. Even inside the sauna room, you can feel the quiet of satoyama and enjoy sweating while remaining relaxed in both body and mind.
Water QualityNatural Water (Groundwater, Spring, etc.)
Capacity2people
A cold plunge bath for cooling down after warming up in the sauna or hot spring. Its crisp chill feels refreshing and helps tighten your heated body. Along with the clean, refreshing quality of the water, it also supports a smooth transition to outdoor air bathing.
Closed Days: None
〒861-0423 Kumamoto Prefecture, Yamaga City, Kikuka Town, Ikenaga 177
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