YakushidoOnsen

A natural chlorinated spring that warms you from the core and a full-fledged wooden sauna beloved by locals

Iwate Oshu City

"Yakushido Onsen" is a hot spring inn in Oshu City, Iwate Prefecture. Its natural hot spring, fed by the spring known as "Dai-ni Gyokuen no Yu," is rich in salt content, close to seawater, and boasts excellent heat retention and skin-beautifying effects. In addition to a beautiful garden open-air bath surrounded by natural rock and a popular electric bath, it also has a full-fledged wooden dry sauna with a slightly higher temperature setting. There is a cold plunge bath fed with smooth natural spring water pumped up from underground, letting guests enjoy the blissful hot-spring experience of tottonou comfortably.

Hot Spring & Bath Information

Bath

TypeNatural Hot Spring

A natural hot spring using the spring known as "Dai-ni Gyokuen no Yu," a sodium chloride spring. The water has a pale yellow-brown color, and because its seawater-like salt content clings to the skin and helps prevent sweat from evaporating, it is slow to cool you down and offers lasting heat retention. Inside the main bath area, there is also a popular "electric bath," which relieves stiffness in the body through the combined effects of the natural hot spring and electricity. In addition, there is a charming garden open-air bath surrounded by large natural rocks, rare even within the prefecture, where you can relax while gazing at the garden’s seasonal scenery.

Sauna

Dry sauna

90°C

Sauna TypeDry Sauna

Stove TypeConvection Stove (Sauna Stone)

Capacity6people

Men'sWomen's

A small wooden sauna room with a warm, welcoming feel, located next to the main bath area. The temperature is set high, and the dry, crisp, powerful heat fills the room. Even in a short session, you can sweat efficiently and thoroughly, and enjoy the refreshing sensation of feeling your pores open all over your body. A simple, quiet sauna space that has long been loved by local guests.

Cold Bath

Cold Bath

16°C

Water QualityNatural Water (Groundwater, Spring, etc.)

Capacity2people

Flow-through
Men'sWomen's

A cold plunge bath installed right next to the sauna room, using luxurious flowing natural water pumped up from underground. Compared with hot water, it has an exceptionally smooth feel on the skin, and its gentle, rounded water quality is a point of pride. The crisp, pleasantly cool water gently envelops your overheated body and leaves you feeling comfortably refreshed and tightened. After the cold-water bath, you can enjoy a luxurious outdoor air bath in the garden area of the open-air section.

Business Hours

Monday
15:00〜00:00
05:00〜09:00
Tuesday
15:00〜00:00
05:00〜09:00
Wednesday
15:00〜00:00
05:00〜09:00
Thursday
15:00〜00:00
05:00〜09:00
Friday
15:00〜00:00
05:00〜09:00
Saturday
15:00〜00:00
05:00〜09:00
Sunday
15:00〜00:00
05:00〜09:00
Holiday
15:00〜00:00
05:00〜09:00
💡 [Day-use bathing] 5:00-9:00, 10:00-21:00

Closed Days: None

Address

023-0003 Yakushido 27, Mizusawa Sakura River, Oshu City, Iwate Prefecture

View on Google Maps

Website

http://www.yakushido-spa.jp/
Hotel & Ryokan

Gender Access

Gender Separated

❓
Tattoos in the Communal Bath
Unknown (Please Check)

The above applies to the communal (shared) baths. At facilities with private baths or private saunas, guests with tattoos may still be able to bathe. Please check with the facility for details.

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