Soto-yu: Ichino-yu
Ichino-yu was built to resemble a Kabuki theater and received its name, meaning “number one bath,” from a certain doctor of Edo period (1603–1868) times who experienced the benefits of the hot spring firsthand. Ichino-yu is known for its spacious “cave” bath, surrounded by natural rock boulders. The low lighting and large bathing area inside the cave make it an inviting spot at any time of day. The free ashi-yu foot bath located outside invites a quick soak if you are in a hurry.