This is the first time for a limestone cave to go up and down so much. The cooler seems to have worked hard and it is comfortable in the summer, but the amount of exercise seems to exceed that. Unexpectedly, I’m more interested in the deep and endless transparent underground lake than the grown stalactite.
The water of the underground lake is rich in minerals such as calcium, and the residents of Iwaizumi who can drink it every day are envious. I love the Iwaizumi yogurt that uses this water.