The main cold plunge bath designed for cooling down immediately after the sauna. With a water temperature of around 12°C, it sharply lowers body temperature the moment it touches the skin. It has sufficient depth, allowing you to feel the 'heat release' in a short time. It is an ideal bath for advanced sauna enthusiasts seeking strong cold stimulation.

Set at a moderately cool temperature, making it easy to enter even for those who are not fond of cold baths. Designed to promote parasympathetic dominance with prolonged stays, gently reducing body heat. Alternating use with the cold plunge bath allows for a deeper state of relaxation. It is characterized by a comfortable coolness that is not too cold.

Using Gifu's natural underground water in a continuous flow, the vibra effect removes the 'water robe,' further lowering the perceived temperature. Located outdoors, it enhances the quality of cooldown with the synergy of the outside air. The soft water quality is pleasant, offering a bath where refreshment and tranquility coexist.