Kusatsu Hot Springs, located in Nagano Prefecture, Japan, is one of the country's most famous onsen (hot spring) resorts. Known for its high sulfur content, the water is believed to have healing properties. The town features numerous public baths and ryokan (traditional inns), making it a popular destination for relaxation and wellness. The iconic Yubatake, or "hot water field," is a symbol of Kusatsu, where hot spring water gushes from the ground and is cooled before being channeled into baths. Visitors can enjoy various outdoor and indoor baths, as well as scenic views of the surrounding mountains, enhancing the tranquil experience.