Mysterious Lake Mashu shining in Mashu blue

Lake Mashu is "Kamuito" in Ainu language. It is a mysterious place, called the Lake of the Gods. Standing on the observation deck, you can see the deep blue waters of the lake, which seem to absorb you and change their appearance from moment to moment with the movement of the clouds. This blue is called "Mashu blue," a unique color created when the blue of the sky is reflected in the water of the lake, which is one of the clearest in the world. On a windless day, the blue color stands out even more.

The lake is surrounded by steep walls, and it is not possible to descend to the surface. The area around Lake Mashu is a specially protected national park. The mystery of this beautiful lake, which has been a magnet for people for a long time, continues to attract many visitors.