Lake Megami

Lake Megami is an artificial mountain reservoir in Tateshina situated at approximately 1,540 meters elevation, surrounded by white birch and larch forest. The water surface mirrors the surrounding woodland and forms a coherent body with gentle shorelines throughout.

Construction of the reservoir began in 1942 as an irrigation project for local agriculture and was completed in 1966 to supply water to the surrounding mountain region. This development reflects Japan's broader investment in water management for farming communities during the mid-20th century.

The lake takes its name from a figure in Japanese mythology, and visitors can experience the local traditions that connect mountain communities to this water source in their daily life.

The lake is accessible by bus from Sakudaira Station, with free parking available on-site for cars and larger vehicles. Visitors should wear sturdy shoes as the pathways around the water vary in surface condition.

During winter the frozen surface becomes a testing ground for vehicle safety training programs, where drivers practice handling in controlled conditions on ice. This practical use transforms the lake into an active training facility beyond its original water storage purpose.