[Machine Translation] Many onsen facilities "circulate" water by injecting chlorine-based chemicals, "add water" to compensate for a lack of hot water volume, or "heat" the water to the extent that the quality of the spring is compromised. This book introduces 445 famous hot springs carefully selected by the author, who has toured hot springs all over Japan to ensure that they are genuine "onsen karefugu" (free-flowing hot-spring water). This is a completely new book, following on from his previous book, "325 Hot Springs with Authentic Kake Nagashi," which was a great success. It is guaranteed to heal both body and soul!