Yamagata May,For one month from the end of winter to early summer, Lake Shirakawa is filled with snow melting water and a submerged forest appears. The color of the water in the lake filled with snow melting water changes color like light blue and light green, the mist that can submerge occasionally with submerged trees will show a fantastic scenery.The fresh green season came to Shirakawa Lake, The sun was shining on one side.It was a fantastic morning wrapped in deep mist.