[Gunma] An overwhelmingly blue river

📍 Lake Shima It's located deep in the mountains of Gunma Prefecture. I was impressed by the beautiful blue color. Shima has two lakes, Lake Shima and Lake Okushima. This is Lake Shima. The surface of the lake is basically blue, but when it rains or the weather is bad, it turns a color closer to turquoise blue. Lake Okushima is a deeper blue. #hiddenplace #japan #breathtakingview