An auto löyly sauna and a groundwater cold plunge bath for the ultimate bliss
Gunma Isesaki City
"Maebashi Yasuragi no Yu" is a super sento located along National Route 50 in Isesaki City, Gunma Prefecture. With a full-fledged sauna equipped with auto löyly and a spacious infrared sauna that can accommodate 40 people, it offers an overwhelmingly intense sweating experience. The cold plunge bath uses groundwater, and its mellow water quality, filtered through rocks from the Kiso region, is something to be proud of. Set at an exquisite temperature of around 15°C, it gently and refreshingly cools down your overheated body after the sauna. With a popular restaurant serving 100% buckwheat soba and Refa showerheads installed, this is a highly cost-effective relaxation space, refined with attention to detail.
Sauna TypeDry Sauna
Stove TypeInfrared Heater
Capacity40people
A stadium-style infrared sauna with overwhelming spaciousness that can accommodate 40 people. The room maintains a comfortable level of humidity without becoming overly dry, making it ideal for warming your body deeply from the core. With wide seating and a TV to watch, you can work up a sweat at your own pace. In this open and airy space, you can spend a truly relaxing time for both body and mind.
Water QualityNatural Water (Groundwater, Spring, etc.)
Capacity6people
A carefully crafted cold plunge bath that uses plenty of groundwater filtered through rocks from the Kiso region. The water quality is exceptionally mellow, with a pleasantly smooth touch that does not feel harshly cold against the skin. Its crisp temperature setting of around 15°C instantly refreshes your body after the sauna. Wrapped in clean, clear water, you can fully enjoy a blissful cooldown.
Closed Days: None
〒379-2214 659 5 Shimofurecho, Isesaki City, Gunma Prefecture
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 auto löyly sauna and a groundwater cold plunge bath for the ultimate bliss
Gunma Isesaki City
"Maebashi Yasuragi no Yu" is a super sento located along National Route 50 in Isesaki City, Gunma Prefecture. With a full-fledged sauna equipped with auto löyly and a spacious infrared sauna that can accommodate 40 people, it offers an overwhelmingly intense sweating experience. The cold plunge bath uses groundwater, and its mellow water quality, filtered through rocks from the Kiso region, is something to be proud of. Set at an exquisite temperature of around 15°C, it gently and refreshingly cools down your overheated body after the sauna. With a popular restaurant serving 100% buckwheat soba and Refa showerheads installed, this is a highly cost-effective relaxation space, refined with attention to detail.
Sauna TypeDry Sauna
Stove TypeInfrared Heater
Capacity40people
A stadium-style infrared sauna with overwhelming spaciousness that can accommodate 40 people. The room maintains a comfortable level of humidity without becoming overly dry, making it ideal for warming your body deeply from the core. With wide seating and a TV to watch, you can work up a sweat at your own pace. In this open and airy space, you can spend a truly relaxing time for both body and mind.
Water QualityNatural Water (Groundwater, Spring, etc.)
Capacity6people
A carefully crafted cold plunge bath that uses plenty of groundwater filtered through rocks from the Kiso region. The water quality is exceptionally mellow, with a pleasantly smooth touch that does not feel harshly cold against the skin. Its crisp temperature setting of around 15°C instantly refreshes your body after the sauna. Wrapped in clean, clear water, you can fully enjoy a blissful cooldown.
Closed Days: None
〒379-2214 659 5 Shimofurecho, Isesaki City, Gunma Prefecture
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