The signature feature of Okawaso, this spectacular open-air bath is arranged in tiered steps like terraced rice fields facing the gorge. The subtle scent of wood from the beautiful cypress roof, the powerful panoramic view of the Okawa River flowing right in front of you, and the abundant natural beauty of Ashinomaki can all be enjoyed with all five senses. The smooth hot spring water, blended from multiple sources, gently envelops and warms the entire body.

A spectacular open-air bath built in wood and projecting out toward the gorge, reminiscent of Kyoto's Kiyomizu no Butai. You can enjoy the ultimate sense of freedom while feeling the changing colors of the seasons up close and in a dynamic way, such as spring cherry blossoms, early summer fresh greenery, autumn leaves, and winter snow-view bathing. In the afternoon, it is a paid private bath by complete reservation only; in the morning, it is a special bath used on a men-and-women alternating basis.

A spacious public bath with large cutout glass windows that let you gaze over the rich beauty of the gorge in every season like a painting. Watching the deep green or autumn foliage reflected on the water while stretching out and soaking leisurely in the natural hot spring is pure bliss. The smooth, mildly alkaline hot spring has excellent absorption for the skin, and its pleasant warmth lingers long after you leave the bath.