Gangwon-do(Jeongseon-gun)
At Hwaam Mineral Spring (화암약수), water rises up through a rock crater located in Dong-myeon, Jeongseon. The water is said to be good for stomachaches, eye infections, and skin diseases; and, as it contains nine essential elements such as calcium and fluorine, it tastes crisp and clean. Also, thick trees and interesting rock formations surround the sides of a path connecting the spring to Hwaam Cave.
* The mineral spring contains 854.3mg of carbonic acid ions, 26.9mg of iron, 82.9mg of calcium, 0.6mg of fluorine and nine other healthy substances.