A natural hot spring facility inside Kokura Korona World in Kokurakita Ward, Kitakyushu. Enjoy sodium-calcium chloride spring water in a variety of baths, including indoor baths, open-air baths, and carbonated springs. The sauna may feature löyly and events, and after your sauna session you can cool down in the cold plunge bath or reclining bath. The facility also has a restaurant and relaxation space, and you can combine your stay with Korona World’s cinema, bowling, and more.