Observatory Open-Air Bath Hanare-no-Yu / Mantenboshi-no-Yu
A colorless, transparent, tasteless, and odorless alkaline simple spring with a pH of 9.7, offering a panoramic view of Mount Fuji and Lake Yamanaka at the same time. Known as a beautifying bath that leaves the skin smooth and silky, it is gentle enough that even children and elderly guests can enjoy a long, relaxing soak. In the open-air bath Hanare-no-Yu and the rock bath in the large bath Mantenboshi-no-Yu, where the starry sky can be admired, you can enjoy spectacular scenery that changes beautifully with each season.




