The water that is collected in this onsen springs up from a depth of 1750 m and contains natural beauty-enhancing ingredients of low-alkalinity, creating an exquisite relaxation experience.
Guests can enjoy this outdoor onsen under a starry sky throughout the year.
LocationARAI 2F, Hoshizora Onsen & Pool
※ Children : Under 12year-old (Free admission for under 3year-old children)
※ When Tuesdays and Fridays are holidays, there will be a two-part system due to the inclusion of sterilization and cleaning time.