Lake Mashu is regularly referred as Kamuito, signifying "the lake of gods", and local people avoid to go near the lake as they can get into trouble easily.

Conceived from a volcanic ejection around 2,000 years back, Japan's baffling Mashu-ko, or Lake Mashu, is reputed to be one of the clearest lakes on the planet. This mirror-like caldera lake sits inside the Akan-Mashu National Park on the island of Hokkaido in northern Japan, and it is viewed as blessing by Japan's native Ainu people. Since the lake is covered by thick haze and 200m cavity dividers that drop pointedly into the water, visiting Lake Mashu's shores is carefully inhibited by the Japanese Ministry of Environment for safety reasons. The lake's unavailability adds to its old interest, yet additionally helps save its crystal clear water.

In the Ainu language, Lake Mashu is regularly referred to as Kamuito, signifying "the lake of gods". The Ainu people believe that a female soul lives inside the lake, and Ainu legend has it that if a guest sees its typically fog secured water, the person will encounter misfortune in one of two different ways: men won't have the option to excel in their professions for a short time, and ladies won't have kids until the rest of their lives. The lake is covered in haze over 100 days every year, and at 212m deep, it is probably the deepest lake in Japan. Since it has no huge inlets or outlets, Lake Mashu has stayed perfect for centuries, drawing guests for many years. Notwithstanding being known as one of Japan's clearest lakes, Lake Mashu is additionally among the clearest lakes on the planet, with a perceivability of 20 to 30m.

Guests can't float, swim or fish in the lake's water, yet three close by perception towers and a climbing trail permit all who wish to have a look at Lake Mashu's magical waters.