This is a day trip Onsen facility located along the Kosaka River in front of Sengyukan. The quality of the spring water is a natural carbonated spring, which is rare in Japan. It is a popular hot spring that is also drinkable. It is also close to Gandate Park, which is one of the sightseeing spots in the area and a base for visiting waterfalls, making it a great place to visit while sightseeing.