Kako no Izumi

Tsukahara Onsen boast the position of No.1 in ferric ion amount and No.2 in acidity and aluminum amount in Japan and are recognized as one of the three major medicinal baths of Japan.
Having a strong acidic pH around 1.8, they are reputed to be effective against skin diseases.
There are also family baths, in addition to the indoor and open-air baths.
Address: 1235, Tsukahara, Yufuin-cho, Yufu-shi, Oita-ken
Admission Fee:
Large Bathtub (indoor bath): Adults 500 yen/Kids 200 yen
Open-air Bath: Adults 600 yen/Kids 200 yen
Family Bath: 1 hour from 2,000 yen
Business Hours:9:00-19:00(June to September),9:00-18:00 (October to May)
Closed Days: End/Beginning of the year (may be closed in the case of snow accumulation during winter period)
Parking: Available
Toilets: Available