NaturalHotSpringKinunoyu

Ibaraki Joso City

Natural Hot Spring Kinunoyu is a day-use hot spring facility located in Joso City, Ibaraki Prefecture. It features two natural hot spring sources that flow from 980m and 1260m underground, providing a generous supply of 349 liters per minute to each bath. The warmth and heat retention of the chloride spring deeply soothe fatigue. Sweat it out in three types of saunas: a large stadium sauna, a meditation sauna, and a salt sauna, then cool off with the crisp natural spring water 'Kinu no Yusui.' The outdoor baths include unique designs such as cypress barrels, Shigaraki ware bowls, and natural granite, showcasing the craftsmanship of artisans. Indoor baths offer a variety of experiences, including carbonated baths and daily herbal baths. The facility also includes a spa, restaurant, and local products shop, allowing you to fully enjoy a day of relaxation and healing.

Hot Spring & Bath Information

Kinunoyu Hot Spring

TypeNatural Hot Spring

Flow-through

A luxurious hot spring flowing from two sources at 980m and 1260m underground, providing a generous supply of 349 liters per minute to each bath. The water has a saline film-like texture, leaving the skin with a moist saltiness after bathing, offering high heat retention. It is mildly alkaline, gentle on the skin, and expected to have beautifying effects. The source water is poured into various baths, including the outdoor 'Shiki no Yu,' 'Oke no Yu,' 'Chawan no Yu,' 'Mikage no Yu,' and the indoor 'Bihada no Yu,' each offering a unique bathing experience. Enjoy the aroma of cypress, the warmth of Shigaraki clay, the luxurious texture of granite, and the craftsmanship of the baths, allowing you to savor the charm of the hot springs with all five senses. The 'Carbonated Kinu no Izumi,' with dissolved carbon dioxide, is also expected to improve blood circulation, making it effective for cold sensitivity and fatigue recovery.

Sauna

Meditation Sauna

65°C

Sauna TypeDry Sauna

Stove TypeConvection Stove (Sauna Stone)

Capacity5people

Men's

A low-temperature sauna characterized by the soft glow of rock salt. The lower temperature is gentle on the body, allowing for a slow sweat while calming the mind. It's an ideal quiet space for meditation, with the light from the rock salt creating a magical atmosphere that leads to a deep state of relaxation. In the leisurely flow of time, you can regulate your breathing and have time to reflect. Perfect for those who are not fond of high-temperature saunas or want to warm up slowly over a long period. Finish with a slow cool down in the cold plunge bath, and enjoy the lingering effects in the unique outdoor baths.

Large Stadium Sauna

90°C

Sauna TypeDry Sauna

Stove TypeConvection Stove (Sauna Stone)

Capacity20people

Men's

A high-temperature sauna that thoroughly expels waste products with far-infrared effects. A spacious area with a large TV monitor allows you to sit back and enjoy sweating. The gentle heat envelops the entire body, gradually drawing out sweat. The stadium-style tiered structure lets you choose your preferred temperature zone: higher tiers for more heat, lower tiers for gentler warmth. Finish by cooling off quickly with the natural spring water 'Kinu no Yusui,' then warm up again in the chloride spring to deeply relieve fatigue.

Salt Sauna

60°C

Sauna TypeSalt Sauna

Stove TypeBuilt-in Stove

Capacity5people

Men's

A salt sauna using premium powder salt. The temperature is set low to allow for a thorough sweat without straining the body. Rubbing salt over the body helps remove old keratin with sweat, leaving the skin smooth. The minerals in the salt absorb dirt from the pores, offering a beautifying effect. The humidity is well-maintained, providing a comfortable space without a stifling feeling.

Cold Bath

Kinu no Yusui

18°C

Water QualityNatural Water (Groundwater, Spring, etc.)

Capacity4people

Flow-through
Men's

A cold plunge bath using refreshing natural spring water. The natural water flows from underground, providing a gentle touch to the skin. The temperature is moderately cold, offering a pleasant cooling effect for the body heated by the high-temperature sauna. It tightens pores and skin, enhancing the refreshing feeling when entered after the sauna.

Business Hours

Monday
09:00〜23:00
Tuesday
09:00〜23:00
Wednesday
Closed Days
Thursday
09:00〜23:00
Friday
09:00〜23:00
Saturday
09:00〜23:00
Sunday
09:00〜23:00
Holiday
09:00〜23:00

Closed Days: Wednesday

Address

1-5-6 Kinunosato, Uchimoriyamachi, Joso City, Ibaraki Prefecture

Onsen & Spa Facilities (Super Sento, Sauna, Spa)

Gender Access

Gender Separated

🚫
Tattoo Policy
No Tattoos
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