Okunasu Taishomura Satinoyu Onsen

Loved by many women for its skin-beautifying and health-promoting effects, this hot spring inn even produces its own “Shutsuyoku Bijin” facial lotion made from fresh spring water.

To celebrate its 30th anniversary, Okunasu Taishomura Satinoyu Onsen restored its unique “Tsuna-no-Yu” bath in August 2014. This distinctive bathing style involves holding onto a rope tied to the beams of the bathhouse while standing in waist-deep water in a bath over one meter deep. Popular in the mid-1960s, it was believed to improve peripheral nerve function and promote blood circulation, attracting many visitors seeking relief from joint and nerve pain.

The bath, paved with river stones, measures 4.3 meters long, 2.6 meters wide, and 1.25–1.4 meters deep. Hot spring water wells up from below, stimulating the soles of the feet and letting bathers fully enjoy the benefits of the high-quality spring water.

Day-trip visitors can also try the Tsuna-no-Yu. It is available to men on Mondays, Wednesdays, and Fridays, and to women on Tuesdays, Thursdays, Saturdays, and Sundays.