Iide Kosen

Iide Kosen—Iide Cold Mineral Spring—shares the name of the magnificent Mt. Iide with the hot spring counterpart bearing the same mountain designation, but delivers its geological mineral gifts as a cold mineral spring (kosen) rather than a thermal bath—a spring type valued in Japanese balneology for the cardiovascular tonic effects and cooling mineral refreshment that cold volcanic spring water provides at a temperature that makes it particularly invigorating in the summer months when the hot springs' warmth may be less desired. The sulfurous mineral character of the cold spring carries the same volcanic geological origin as the hot springs of the Iide area, delivering the hydrogen sulfide mineral compounds of the volcanic substrate at the cool temperature of an unheated geological emergence. This cold sulfurous spring of the famous Iide mountain complements its hot spring counterparts with the refreshing alternative of volcanic mineral benefits at natural cool temperature.