Located three hours by train from Tokyo, KAI Kawaji is a riverside hot spring ryokan that pays homage to pastoral Japanese scenery, with an entryway that passes right under a traditional row house and a watermill located on the premises. Large windows offer scenic views of nearby hills and a river that runs past the ryokan’s outdoor baths. Guests are invited to learn about the creative innovations that the Japanese developed in the past to make life comfortable even in the deepest mountains, such as rotary querns and hibachi braziers.