A sodium chloride spring gushing from 1,500m underground
Aichi Obu City
"Natural Hot Spring Megumi no Yu" is a bathing facility located inside JA Agritown Genki no Sato in Obu City, Aichi Prefecture. It has two bathing areas, a Japanese-style one called Dōbūn and a Western-style one called Zabūn, and the men’s and women’s baths switch weekly. Classical music plays in the sauna room, so you can work up a good sweat in a calm atmosphere. The cold plunge bath after the sauna uses groundwater that feels gentle on the skin, allowing for a pleasant cool-down. Its greatest attraction is the sodium chloride spring that gushes from 1,500m underground. This natural hot spring is not diluted with added water, and its smooth, slightly viscous water texture is a defining feature.
TypeNatural Hot Spring
A sodium chloride spring that gushes from 1,500m underground at a generous flow rate of 204 liters per minute. This is a 100% self-dug natural hot spring with no added water, and its smooth, slightly viscous texture is a hallmark. The salt content forms a thin film on the skin, so the warmth lasts for a long time even after bathing. You can fully enjoy this renowned spring in a variety of baths, including an open-air rock bath and Tokoname ware pot baths.
Sauna TypeDry Sauna
Stove TypeConvection Stove (Sauna Stone)
Capacity15people
A dry sauna equipped in both the Japanese-style and Western-style bathing areas. A TV is installed inside the room, but classical music plays as background music, letting you immerse yourself in the sauna in a calm, relaxed atmosphere. With an orthodox setup that lets you feel the heat clearly, it warms you thoroughly from the core and encourages a comfortable sweat.
Water QualityNatural Water (Groundwater, Spring, etc.)
Capacity2people
A cold plunge bath located just outside the sauna room. Because it uses groundwater, it has a soft feel on the skin and a mellow quality. It gently yet firmly cools down your body after the sauna. The open-air area also has a space for outdoor air bathing, supporting a smooth totonou experience after the cold plunge.
Closed Days: None
〒474-0041 Aichi Prefecture, Obu City, Yoshida-cho Kagogire, Shoemon Shinden 1-1
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
A sodium chloride spring gushing from 1,500m underground
Aichi Obu City
"Natural Hot Spring Megumi no Yu" is a bathing facility located inside JA Agritown Genki no Sato in Obu City, Aichi Prefecture. It has two bathing areas, a Japanese-style one called Dōbūn and a Western-style one called Zabūn, and the men’s and women’s baths switch weekly. Classical music plays in the sauna room, so you can work up a good sweat in a calm atmosphere. The cold plunge bath after the sauna uses groundwater that feels gentle on the skin, allowing for a pleasant cool-down. Its greatest attraction is the sodium chloride spring that gushes from 1,500m underground. This natural hot spring is not diluted with added water, and its smooth, slightly viscous water texture is a defining feature.
TypeNatural Hot Spring
A sodium chloride spring that gushes from 1,500m underground at a generous flow rate of 204 liters per minute. This is a 100% self-dug natural hot spring with no added water, and its smooth, slightly viscous texture is a hallmark. The salt content forms a thin film on the skin, so the warmth lasts for a long time even after bathing. You can fully enjoy this renowned spring in a variety of baths, including an open-air rock bath and Tokoname ware pot baths.
Sauna TypeDry Sauna
Stove TypeConvection Stove (Sauna Stone)
Capacity15people
A dry sauna equipped in both the Japanese-style and Western-style bathing areas. A TV is installed inside the room, but classical music plays as background music, letting you immerse yourself in the sauna in a calm, relaxed atmosphere. With an orthodox setup that lets you feel the heat clearly, it warms you thoroughly from the core and encourages a comfortable sweat.
Water QualityNatural Water (Groundwater, Spring, etc.)
Capacity2people
A cold plunge bath located just outside the sauna room. Because it uses groundwater, it has a soft feel on the skin and a mellow quality. It gently yet firmly cools down your body after the sauna. The open-air area also has a space for outdoor air bathing, supporting a smooth totonou experience after the cold plunge.
Closed Days: None
〒474-0041 Aichi Prefecture, Obu City, Yoshida-cho Kagogire, Shoemon Shinden 1-1
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