Kiboso is a health-promoting hot spring ryokan in Yunoyama Onsen, Komono Town, Mie Prefecture. From the panoramic large public bath, Jijo no Yu, in the main building, reached by a private cable car descending from the mountain-top annex with the lobby, you can take in a sweeping, breathtaking panorama of Ise Bay and the cityscape of Yokkaichi. The hot spring draws from a rare private source with one of the highest radon contents in Japan. It also features a natural hot spring steam sauna that gently warms the body. In addition, there is Radon no Izumi, where you can experience a warm radon bath with a high concentration of radon, offering remarkable healing power and relaxation effects.