Located 1,000 meters above sea level in the Hachimantai National Park, this one-house inn surrounded by nature has been in operation for more than 300 years. 4 different types of spring water can be enjoyed, including a “box steam bath” where guests are steamed in the hot spring with only their necks removed from a wooden box, and a “mud bath” where guests can apply mud filled with hot spring ingredients to their entire bodies for beautiful skin.