A signature bath unique to Wano Yu: an open-air bath filled with saline water at the same salt concentration as seawater, which gently tightens the skin while warming you from the core. This salt bath experience is made possible by the facility's location near the Seto Inland Sea, and the salt content is strong enough to sting if you have small cuts on your skin. The open-air area also has multiple relaxation chairs for outdoor cooling, so you can enjoy a superb bathing experience together with the sauna while feeling the sea breeze.