|Address||Shonaicho Asono, Yufu City, Oita Prefecture|
|Contact||Yufu City Commerce, Industry & Tourism Division|
Located at the foot of Mt. Kurodake, Oike is a group of hot springs found upstream of the Asono River. The area's springs come from water trickled down from Mt. Kurodake over long periods of time.
The water is soft and mild and completely transparent down to the bottom of the current. The Oike pond is surrounded by a walkway and is a perfect hiking destination that goes through the beautiful mountain scenery.