Built in the first year of the Meiji era, this is Japan's largest mixed-gender open-air bath, spanning 120-tsubo. It uses famed hot spring water flowing from the inn's own source on the premises, with no added water or heating at all, in 100% free-flowing natural spring style. The gentle, smooth water clings softly to the skin like natural lotion. Surrounded by a vast garden and offering an overwhelming sense of openness, you can luxuriate in the hot spring in a dreamlike atmosphere until nearly midnight.

A large public bath available on a rotating basis for men and women. Like the mixed-gender bath, it is generously filled with fresh natural hot spring water flowing directly from the inn's own source. The bathtubs are also equipped with a waterfall-style bath and a pleasantly stimulating bubble bath, allowing you to gently loosen up your body. While gazing at the lush greenery and atmosphere beyond the windows, you can fully enjoy the hot spring water, known for its excellent skin-beautifying effects.