Shirogane Blue Pond
A visit to Shirogane Blue Pond in Biei is a must, especially during the summer. Unveiling a surreal display of vibrant blue hues, this picturesque pond has become an increasingly popular destination. In 1988, the pond was artificially created during the construction of a dam to protect Biei from volcanic mud. The water’s stunning blue color comes from its unique mix of sulfur and aluminum from nearby tributaries, local onsen, and Shirahige Falls. These elements create colloids in the water, which reflect sunlight, basically creating the blue color of the water. Additionally, the white surface ...