Located on the way to Hakuba from JR Hakuba Station, you can enjoy the view of the Hakuba three mountains from the open-air bath, with Happoone in the background. During the cherry blossom season, you can take a bath while enjoying the cherry blossoms at night. The annexed “Mimizuku Chaya” is famous for its Onsen udon noodles. There are plenty of souvenirs.