Hyakkan Shimizu Spring
The Hyakkan Shimizu Spring is a clear spring known for its cool, drinkable water. It is at an altitude of 1,300 meters on a trail between Mt. Nishi-Daiten and Mt. Nishi-Azuma.
The spring is surrounded by towering beech trees and is the source of the Onogawa River and the enormous Onogawa Fudo waterfall. Hikers can refill their bottles using a scoop placed next to the pool.