A hidden hot spring retreat known for source-fed water and an intense heat-pressure sauna
Kagoshima Satsumasendai City
Kumanojo Onsen is a locally popular public bath quietly tucked away in a residential area of Satsumasendai. The spring is a sodium-calcium chloride hot spring supplied directly from the source. The sauna is compact, seating 4–5 people, and because the gas far-infrared stove is close to the benches you can experience a pleasant, strong heat pressure above 90°C. The cold plunge bath uses groundwater supplied as a free-flowing source, and its clear water at about 18°C–20°C tightens the body effectively after the sauna. The facility shines for the high quality of its hot spring, sauna, and cold plunge bath.
TypeNatural Hot Spring
A sodium-calcium chloride spring emerging from more than 800 meters underground. The water is colorless and clear with a faint sulfur scent and a softly moisturizing quality. It is provided at a slightly hot temperature, allowing you to warm deeply from the core.
Sauna TypeDry Sauna
Stove Typefar_infrared
Capacity5people
A compact two-tiered sauna with an Olympia far-infrared gas stove, sized for 4–5 people. The room temperature is around 90°C–94°C, and because the benches are close to the stove the heat pressure is excellent. You can sweat thoroughly without feeling overwhelmed, a setup sauna enthusiasts will love.
Water QualityNatural Water (Groundwater, Spring, etc.)
Capacity3people
Located just beside the sauna, this cold plunge bath is knee- to mid-thigh-deep. Groundwater is supplied continuously as a free-flowing source from the tap, with a water temperature of about 18°C–20°C. The clear, crisp water quality provides an exquisite balance with the sauna heat.
Closed Days: None
1195 Kumanojo-cho, Satsumasendai, Kagoshima 895-0041, Japan
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 hidden hot spring retreat known for source-fed water and an intense heat-pressure sauna
Kagoshima Satsumasendai City
Kumanojo Onsen is a locally popular public bath quietly tucked away in a residential area of Satsumasendai. The spring is a sodium-calcium chloride hot spring supplied directly from the source. The sauna is compact, seating 4–5 people, and because the gas far-infrared stove is close to the benches you can experience a pleasant, strong heat pressure above 90°C. The cold plunge bath uses groundwater supplied as a free-flowing source, and its clear water at about 18°C–20°C tightens the body effectively after the sauna. The facility shines for the high quality of its hot spring, sauna, and cold plunge bath.
TypeNatural Hot Spring
A sodium-calcium chloride spring emerging from more than 800 meters underground. The water is colorless and clear with a faint sulfur scent and a softly moisturizing quality. It is provided at a slightly hot temperature, allowing you to warm deeply from the core.
Sauna TypeDry Sauna
Stove Typefar_infrared
Capacity5people
A compact two-tiered sauna with an Olympia far-infrared gas stove, sized for 4–5 people. The room temperature is around 90°C–94°C, and because the benches are close to the stove the heat pressure is excellent. You can sweat thoroughly without feeling overwhelmed, a setup sauna enthusiasts will love.
Water QualityNatural Water (Groundwater, Spring, etc.)
Capacity3people
Located just beside the sauna, this cold plunge bath is knee- to mid-thigh-deep. Groundwater is supplied continuously as a free-flowing source from the tap, with a water temperature of about 18°C–20°C. The clear, crisp water quality provides an exquisite balance with the sauna heat.
Closed Days: None
1195 Kumanojo-cho, Satsumasendai, Kagoshima 895-0041, Japan
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