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제목 Japan’s mysterious ‘lake of the gods’
작성자 관리자 작성일 2019-10-04
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Japan’s mysterious ‘lake of the gods’

Often shrouded in mist, Lake Mashu is the clearest, deepest lake in Japan – and seeing its surface is said to seal your fate.

Born from a volcanic eruption around 2,000 years ago, Japan’s mysterious Mashu-ko, or Lake Mashu, is rumoured to be one of the clearest lakes in the world. This mirror-like caldera lake sits within the Akan-Mashu National Park on the island of Hokkaido in northern Japan, and it is considered sacred by Japan’s indigenous Ainu people. Because the lake is surrounded by dense fog and 200m crater walls that drop sharply into the water, visiting Lake Mashu’s shores is strictly prohibited by the Japanese Ministry of Environment for safety reasons. The lake’s inaccessibility not only adds to its ancient intrigue, but also helps preserve its unspoilt waters.

In the Ainu language, Lake Mashu is often referred to as Kamuito, meaning “the lake of the gods”, and locals are known to journey as close to the lake as they can for inspiration during difficult times. The Ainu people believe that a female spirit lives within the lake, and Ainu legend has it that if a visitor sees the surface of its usually mist-covered water, he or she will experience bad luck in one of two ways: men will not be able to get ahead in their careers for a while, and women will not have children until later in life. 

The lake is blanketed in fog more than 100 days a year, and at 212m deep, it is the deepest lake in Japan. Because it has no significant inlets or outlets, Lake Mashu has remained pristine for millennia, drawing visitors for hundreds of years. In addition to being known as one of Japan’s most beautiful lakes, Lake Mashu is also among the clearest lakes in the world, with a visibility of 20 to 30m.

Visitors are unable to boat, swim or fish in the lake’s waters, but three nearby observation towers and a hiking trail allow all who wish to test their luck a glimpse at Lake Mashu’s mystical waters.



1. caldera

Noun a large volcanic crater, especially one formed by a major eruption leading to the collapse of the mouth of the volcano.

2. glimpse

Noun a momentary or partial view.

 3.  prohibited

Adjective that has been forbidden; banned.

4. crater

Noun a large, bowl-shaped cavity in the ground or on the surface of a planet or the moon, typically one caused by an explosion or the impact of a meteorite or other celestial body.

5. inlets

Noun a small arm of the sea, a lake, or a river.



1. What is the name of the Japan’s mysteries lake?

2. What do Ainu people believe and what are the 2 bad lucks?

3. How deep is the Lake Mashu and how far can you see under the water?

4. Visitors are prohibited from doing what 3 actions in the lake’s water?

5. How old is Lake Mashu?