Soni Highland Onsen
TypeNatural Hot Spring
Both the open-air and indoor baths are filled with sodium bicarbonate hot spring water, offering a 'smooth and moist' bathing experience that envelops the skin. The bicarbonate component softens keratin, leaving the skin smooth after bathing. The open-air bath offers views of Kabuto-dake, Yoroi-dake, and Soni Highland, and the contrast between the outdoor air and the hot spring temperature gently enhances blood circulation.


