Lake Mashu in winter
Lake Mashu boasts a depth of No.1 in Japan and is the second deepest lake in the world after Lake Squid Caldera, and it is suddenly deep, and due to its transparency, there is little reflection of light other than blue, and you can see Lake Mashu's Roux, which is especially blue and deep indigo in clear winter. The mountain in the background is Mt. Shari, and Kamuish Island can be seen in the foreground
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