A full-fledged dry sauna equipped in the observatory bathhouse Unkai. Large windows spanning the entire wall offer a panoramic view of the magnificent Rokko mountain range and the streets of Arima spread out below. Powerful, comfortable heat envelops your body, letting you enjoy a luxurious sweating experience while gazing at the ever-changing sky and seasonal scenery. It is a sauna where you can spend a quiet, indulgent time that feels united with the view.

A bouna sauna installed in the large bath on Basement 2, Yurari. The heater is built beneath the bench, and gentle heat rises slowly from your feet. Because the air is not too dry and the balance of humidity and heat feels comfortable, you can stay for a long time without feeling short of breath. In a quiet space wrapped in calm Japanese lighting, you can enjoy a sweating experience that gently melts away the fatigue of daily life.

A refreshing cold bath equipped in each large bath area, with a crisp, invigorating chill. Its smooth, pleasant coldness makes it comfortable for anyone to enter, quickly cooling down a body heated by the sauna. In addition to the top-floor Unkai, it is also installed in the open-air space of the basement Yurari, surrounded by greenery, leading you into a blissful outdoor air bath while feeling the rich natural breeze.