A full-fledged dry sauna located in the open-air area of the second-floor Daikoku no Yu large bath, with the refreshing scent of wood. Designed for smooth entry while feeling Ikaho's cool outdoor air, it lets you quietly enjoy the warmth of wood while gradually encouraging deep, full-body perspiration. A cold plunge bath and relaxation chairs are placed right in front of the sauna exit, promising a perfect totonou experience amid the rich atmosphere of the open air.

A compact dry sauna installed in the indoor bathing area of Kicchou no Yu, the panoramic bath on the top eighth floor. Clean and very calm in atmosphere, the room lets you quietly center yourself while enjoying a mild yet evenly spread, pleasant heat. Using it between visits to the panoramic open-air bath overlooking the mountain ranges and the two famous gold and silver springs adds an even more luxurious sense of relaxation.

A refreshing cold plunge bath placed directly in front of the open-air sauna room in the second-floor Daikoku no Yu. Its clear, gentle water quality, evoking the blessings of Ikaho's rich natural environment, briskly and pleasantly tightens your body after the sauna. Relaxation chairs are lined up right in front, making this a superbly designed space where you can enjoy an ideal alternating bath cycle, breathing in Ikaho's fresh mountain breeze and transitioning into an outdoor air bath.

A luxurious cold plunge bath in a ceramic tub style, quietly standing next to the sauna in Kicchou no Yu on the eighth floor. It comes with a faucet for topping up water as desired, and its biggest appeal is that you can enjoy a private, immersive experience suited to one person while taking in its sharp, cold water. At just the right moment after the sauna, you can cool down your whole body while slipping into your own world.