Soak in two types of onsen: one originating from rainwater and the other from seawater.

In the town of Iwanai, there are two types of onsen, each with different kind of water. There’s the bicarbonate spring water, known as the “Beauty Onsen,” and the mineral-rich chloride spring water, known as the “Warming Onsen.” Both are sources of healing that are integrated into the daily lives of the local people, who visit them regularly. The “Iwanai Kogen Hotel” and “Okaerinasai” offer the beauty onsen, while “Sansan no Yu” offers the warming onsen. Immerse yourself in the same water as the local people and experience the natural blessings of Iwanai.