For a natural experience of a different kind, organize an outing to the bubbling pools of Shionoyu Onsen. This spot is renowned for its mineral-rich thermal waters.
Located in Nose, this naturally heated water source is worth a look. But you'll find a great deal more to check out in this area. Ruri River Valley Natural Park, Mt. Nosemyoken, and Kaya No Sato Country aren't too far away from Shionoyu Onsen.