NaturalHotSpringIsesakiYumaaru

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Gunma Isesaki City

"Natural Hot Spring Isesaki Yumaaru" is a day-use hot spring facility located in Isesaki City, Gunma Prefecture. It boasts the "Beauty Skin Bath," which is a bicarbonate spring flowing directly from a source 1,500 meters underground, offering 100% natural spring water. The men's tower sauna is a large sauna with a five-tier structure, allowing you to sweat thoroughly at different temperature zones on each tier. The cold plunge bath is supplied with cold well water, offering a refreshing cooling experience. Every Friday, Saturday, and Sunday, the "Hurricane Heat Wave" event is held, where a blower releases an overwhelming heat wave that envelops the entire body. The facility also includes the Yumaaru Tei dining area and a totonou room, making it a comfortable bathing facility to enjoy all day long.

Hot Spring & Bath Information

Yumaaru Raw Source

TypeNatural Hot Spring

Flow-through

A bicarbonate spring emerging from about 1,500 meters underground. Supplied with 100% natural spring water, you can indulge in the luxury of always soaking in fresh hot spring water. Known as the "Beauty Skin Bath," it is expected to smooth and refine the skin. The texture of the water is soft, gently enveloping the body heated from the sauna or cold plunge bath, providing a lasting warmth from the core. Yumaaru Carbonated Source and Nano High-Concentration Carbonated Spring are also available, allowing you to enjoy a sensation like soda bubbles adhering to your skin, with expected benefits of promoting blood circulation and activating metabolism. The facility offers a variety of baths such as open-air baths, cypress baths, jet baths, and electric baths, expanding the enjoyment of soaking in different hot springs.

Sauna

Tower Sauna

100°C

Sauna TypeDry Sauna

Stove TypeConvection Stove (Sauna Stone)

Capacity20people

Men's

A large tower sauna. The benches are structured in five tiers, with the 1st and 2nd tiers having slightly lower temperatures, allowing beginners to sweat comfortably, while the 3rd tier and above satisfy advanced users with high temperatures. The top 5th tier exceeds a perceived temperature of 100°C, causing sweat to gush out with overwhelming heat. Every Friday, Saturday, and Sunday, the "Hurricane Heat Wave" event is held, where the blower releases accumulated heat from the upper layers of the sauna, allowing you to experience a blast of heat that envelops the entire body. Each tier offers a different quality of heat, allowing you to adjust according to your level and enjoy the sauna.

Cold Bath

Cold Bath

18°C

Water QualityNatural Water (Groundwater, Spring, etc.)

Capacity4people

Flow-through
Men's

A cold plunge bath supplied with cold well water. Fresh well water constantly flows in, ensuring clean and pleasant water quality. On weekends, the "Water Column Event" features a vigorous release of water, temporarily lowering the water temperature, allowing you to enjoy the refreshing sensation of tightening the sauna's heat with cold water.

Business Hours

Monday
09:00〜00:00
Tuesday
09:00〜00:00
Wednesday
09:00〜00:00
Thursday
09:00〜00:00
Friday
09:00〜00:00
Saturday
09:00〜00:00
Sunday
09:00〜00:00
Holiday
09:00〜00:00

Closed Days: None

Address

1136-9 Ota-machi, Isesaki City, Gunma Prefecture

View on Google Maps

Website

http://www.yumarl.com/
Onsen & Spa Facilities (Super Sento, Sauna, Spa)

Gender Access

Gender Separated

🚫
Tattoo Policy
No Tattoos
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