The Oyu Onsen resort has been blessed with abundant natural hot water since 800 years ago. With the therapeutic effect of its hot springs, it was designated as a health resort of the Nanbu clan that governed this part of Japan in the Edo period (1600-1868).
Ever since Lake Towada was designated as part of a national park, which is closest to the lake, has been attracting many tourists.
The public bath Arase-no-yu is also called Kuma-no-yu (bears' hot spring) as it has a big rock where, as the story goes, bears used to rest when they came to heal their wounds. People have pass down the story stressing that the therapeutic effects work on people as well as on bears.
Sodium - chloride hot spring
[Conditions supposedly helped by bathing]
Cut, burn, chronic skin diseases, physically weak children, chronic gynecological diseases
[Bathing restrictions] None
[Conditions supposedly helped by drinking spring water] Chronic digestive diseases, chronic constipation
[Restrictions for drinking spring water]
Kidney diseases, high blood pressure, other symptoms with swelling
[General conditions supposedly helped by bathing]
Acute diseases (especially with fever), active TB, malignancy,
severe heart diseases, respiratory failure, bleeding associated with kidney failure, severe anemia, other general progressive disorders, and early and advanced pregnancy
[General restrictions for bathing]
Neuralgia, muscle pain, joint pain, frozen shoulders, motor weakness, stiff joints, bruises, sprains, chronic digestive disease, hemorrhoids, sensitivity to cold, recovering conditions, fatigue, general health