Chloride spring water gushing from 1,300 meters underground. Enjoy 100% pure spring water without any added water or heating in the open-air and private baths. After bathing, salt adheres to the skin, providing high moisturizing effects. The texture of the water feels like a salt film, offering very high heat retention, earning it the name 'netsu no yu' or 'heat bath', as it prevents getting cold after bathing. Known for its strong antibacterial properties, it is also called 'kizu no yu' or 'healing bath', promoting recovery from skin irritations and cuts. The large bathhouse includes high-temperature and jet baths, allowing you to choose according to your preference. In the open-air bath, enjoy the flowing clouds by day and starry skies by night while indulging in fresh spring water. Highly recommended for those with dry skin or sensitivity to cold, as the skin feels moist and the warmth from the core lasts after bathing.