A spacious indoor public bath where you can fully stretch out and relax while gazing directly at the beautiful surface of Shibayamagata, said to change color seven times a day. It is filled around the clock with abundant water from the inn's own source, with a spring temperature of 72 degrees Celsius or higher, in luxurious free-flowing form with no heating or added water at all. Rich in minerals and salt, it is a famous skin-beautifying hot spring that warms you to the core and stays warm for a long time.

Two luxurious private hot spring baths where you can enjoy onsen in a private setting with your loved ones or partner. In a comfortable universal-design space overlooking Shibayamagata and a refined inner garden, you can luxuriate in high-quality natural hot spring water straight from the source and enjoy its skin-beautifying properties all to yourself (available free of charge once for 45 minutes to staying guests).

An atmospheric private hot spring stone bath set on the terrace of a luxurious special room overlooking the lakeshore. This exceptionally private, top-class facility lets you bathe whenever you like, 24 hours a day, with the exquisite source water from Katayamazu Onsen drawn straight from the source for exclusive use.