An authentic Korean-style sauna, plul-kama, and a natural radon hot spring in Morioka
Iwate Morioka City
"Seinan Onsen Kaiun no Yu" is a day-use hot spring facility in Morioka City, Iwate Prefecture. Its biggest highlight is the authentic Korean-style sauna known as plul-kama, which is rare even in Tohoku, where the powerful far-infrared heat radiated from medicinal stones produces a deep sweating experience. The natural radon hot spring, gushing from 1,200 m underground, is an alkaline bath that is gentle on the skin and warms the body and mind from the core. It also features a dry sauna with auto löyly and a mild cold plunge bath using groundwater, offering a luxurious refreshment time where Korean traditions of relaxation and Japanese hot spring culture blend together.
TypeNatural Hot Spring
An alkaline simple mildly radioactive hot spring (radon hot spring) gushing from 1,200 m underground. Rich in valuable radon components, it is beloved as a beautifying bath with excellent benefits for skin care and health promotion. Its gentle waters envelop the entire body, and the warmth lingers long after you leave the bath.
Sauna TypeDry Sauna
Stove TypeConvection Stove (Sauna Stone)
Capacity10people
A calm, softly lit dry sauna equipped with auto löyly. Periodic waves of aromatic heat fill the room, promoting a refreshing sweat along with a comfortable level of humidity. It is a relaxing space where you can unwind while watching TV.
Water QualityNatural Water (Groundwater, Spring, etc.)
Capacity4people
A mild cold plunge bath using groundwater that feels gentle and pleasant on the skin. The well-balanced temperature is not overly刺激, so you can immerse yourself comfortably and enjoy cooling down at your own pace. It gently tightens your body after sauna use and leads you into a deep state of refreshment for both body and mind.
Closed Days: None
020-0866 Iwate Prefecture, Morioka City, Motomiya 3-chome 8
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 authentic Korean-style sauna, plul-kama, and a natural radon hot spring in Morioka
Iwate Morioka City
"Seinan Onsen Kaiun no Yu" is a day-use hot spring facility in Morioka City, Iwate Prefecture. Its biggest highlight is the authentic Korean-style sauna known as plul-kama, which is rare even in Tohoku, where the powerful far-infrared heat radiated from medicinal stones produces a deep sweating experience. The natural radon hot spring, gushing from 1,200 m underground, is an alkaline bath that is gentle on the skin and warms the body and mind from the core. It also features a dry sauna with auto löyly and a mild cold plunge bath using groundwater, offering a luxurious refreshment time where Korean traditions of relaxation and Japanese hot spring culture blend together.
TypeNatural Hot Spring
An alkaline simple mildly radioactive hot spring (radon hot spring) gushing from 1,200 m underground. Rich in valuable radon components, it is beloved as a beautifying bath with excellent benefits for skin care and health promotion. Its gentle waters envelop the entire body, and the warmth lingers long after you leave the bath.
Sauna TypeDry Sauna
Stove TypeConvection Stove (Sauna Stone)
Capacity10people
A calm, softly lit dry sauna equipped with auto löyly. Periodic waves of aromatic heat fill the room, promoting a refreshing sweat along with a comfortable level of humidity. It is a relaxing space where you can unwind while watching TV.
Water QualityNatural Water (Groundwater, Spring, etc.)
Capacity4people
A mild cold plunge bath using groundwater that feels gentle and pleasant on the skin. The well-balanced temperature is not overly刺激, so you can immerse yourself comfortably and enjoy cooling down at your own pace. It gently tightens your body after sauna use and leads you into a deep state of refreshment for both body and mind.
Closed Days: None
020-0866 Iwate Prefecture, Morioka City, Motomiya 3-chome 8
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