Exquisite cold plunge baths featuring the Miracle Bath and the natural nigari cold spring
Kumamoto Uki City
A day-use natural hot spring facility that insists on free-flowing source water in all baths. The rare "Miracle Bath" is a chloride spring rich in natural active hydrogen and is characterized by countless tiny bubbles that cling to the skin. The sauna facilities include a high-temperature far-infrared sauna and a salt sauna. The biggest highlight is the cold plunge baths fed 100% with a natural nigari cold spring rich in precious minerals. Available both indoors and outdoors, these baths can feel like a full-body beauty lotion bath and are expected to have skin-beautifying effects.
TypeNatural Hot Spring
A sodium chloride spring rich in natural active hydrogen. All baths are continuously supplied with spring water directly from the source, and the premium water quality leaves countless tiny bubbles on the skin.
Sauna TypeDry Sauna
Stove TypeInfrared Heater
Capacity15people
A spacious three-tier tower far-infrared gas sauna. Its mild, pleasant heat is characteristic, and it is popular as a relaxing spot for locals.
Sauna TypeDry Sauna
Stove TypeInfrared Heater
Capacity5people
A mild salt sauna with a room temperature of around 50°C. It encourages steady sweating while promoting skin detoxification.
Water QualityHot Spring Water
Capacity4people
A cold plunge bath using 100% natural nigari cold spring water. It is deep and offers a lotion-like water quality rich in skin-beautifying minerals.
Water QualityHot Spring Water
Capacity8people
A spacious cold plunge bath in the outdoor area. Also filled with 100% natural nigari cold spring water, it can be enjoyed together with an invigorating open-air cool-down.
Closed Days: None
5-1 Kitashinden Kitashinden, Ogawa-machi, Uki City, Kumamoto Prefecture 869-0631, Japan
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
Exquisite cold plunge baths featuring the Miracle Bath and the natural nigari cold spring
Kumamoto Uki City
A day-use natural hot spring facility that insists on free-flowing source water in all baths. The rare "Miracle Bath" is a chloride spring rich in natural active hydrogen and is characterized by countless tiny bubbles that cling to the skin. The sauna facilities include a high-temperature far-infrared sauna and a salt sauna. The biggest highlight is the cold plunge baths fed 100% with a natural nigari cold spring rich in precious minerals. Available both indoors and outdoors, these baths can feel like a full-body beauty lotion bath and are expected to have skin-beautifying effects.
TypeNatural Hot Spring
A sodium chloride spring rich in natural active hydrogen. All baths are continuously supplied with spring water directly from the source, and the premium water quality leaves countless tiny bubbles on the skin.
Sauna TypeDry Sauna
Stove TypeInfrared Heater
Capacity15people
A spacious three-tier tower far-infrared gas sauna. Its mild, pleasant heat is characteristic, and it is popular as a relaxing spot for locals.
Sauna TypeDry Sauna
Stove TypeInfrared Heater
Capacity5people
A mild salt sauna with a room temperature of around 50°C. It encourages steady sweating while promoting skin detoxification.
Water QualityHot Spring Water
Capacity4people
A cold plunge bath using 100% natural nigari cold spring water. It is deep and offers a lotion-like water quality rich in skin-beautifying minerals.
Water QualityHot Spring Water
Capacity8people
A spacious cold plunge bath in the outdoor area. Also filled with 100% natural nigari cold spring water, it can be enjoyed together with an invigorating open-air cool-down.
Closed Days: None
5-1 Kitashinden Kitashinden, Ogawa-machi, Uki City, Kumamoto Prefecture 869-0631, Japan
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