Lake Mashu in east Hokkaido is a deep blue beautiful lake, but it’s quite rare to be able to see the entire lake at one glance, especially in summer when the sky is not clear. We Japanese call it “The foggy lake of Mashu.”

Because of the precipitous cliffs around this lake, it quite often happens that a thick fog shows up that lasts all day long. Weather data indicates that there are more than 100 days per year where Lake Mashu is enveloped in heavy fog.

But what luck! We saw the entire lake on this occasion in mid-September. It was a beautiful day and both the sky and lake were almost crystal clear.