Drone shots of the Shirogane Blue Pond and the surrounding autumn leaves
The Shirogane Blue Pond is a manmade body of water in the eastern part of the town of Biei, Hokkaido. The beautiful, mysterious and fantastic turquoise blue is from the aluminum compounds present in the Shirogane Hot Springs in the upper reaches of the Biei River mixing with the river water. The pond is one of Biei's leading tourist attractions.