For a natural experience of a different kind, organize an outing to the bubbling pools of Yubara Onsen. This spot is renowned for its mineral-rich waters.
This naturally heated water source is in Maniwa, a place that has so much going for it! Tsuguro Riverside Park, Gyokusenji Temple, and Ashio Fall are other good sightseeing choices not far away when you've finished up at Yubara Onsen.