In Japan, in Hokkaido region, there is a splendid body of water of natural origin, which has a fascinating and dark history. We are talking about Mashū-Ko, also known as lake Mashu: it is the clearest in the world, a record it has held for many decades.
But not only that, because according to legends it is also a cursed lake, and visitors go to admire it at their own risk. Lake Mashū is located in the territory of Akan National Park, one of the largest and oldest in Japan. This area is rich in forests and volcanoes, among which the Mashū volcano stands out, now inactive. Inside its caldera many centuries ago a crater-like body of water was formed which soon became famous throughout the world.
The waters of Lake Mashū they are in fact so crystalline that, in 1931, visibility stood at a depth of 40 metres, breaking the record previously held by Lake Baikal. What makes it so clear is a series of very particular factors: it is in fact located over 350 meters above sea level and it has no tributaries or emissaries, being fed solely by rainwater and melt water. Furthermore, it does not host life forms, whether plant or animal.
But in the last few decades the situation has changed. With the introduction of two species of trout and with air pollution constantly increasing, the clarity of its waters has decreased. Today visibility is around 20 meters deep, and is likely to get worse in the future. However, this does not diminish its incredible charm which made him so famous. Lake Mashū is known to be the most cursed of all time. Contributing to this legend is the thick blanket of fog that practically constantly covers its surface.
According to ancient Japanese tradition, this body of water is the “lake of the gods”. Many go there as close as possible to draw inspiration and strength in the difficult moments of their lives, because a particularly important feminine spirit resides here. But seeing its waters is very dangerous: legend has it that whoever dares so much he will experience great misfortune (men will see their careers end and women will have children only at a later age). It is likely that this mysterious story derives from the difficulty with which one can get to admire the lake, which is practically inaccessible – it is surrounded by 200 meter volcanic walls.
To preserve its pristine waters, the Japanese authorities have Access to the shores of Lake Mashū is prohibited, but the more intrepid can enjoy its splendid view and can follow a fascinating hiking trail from which the gaze can reach the borders of the volcanic crater. And you, are you ready to immerse yourself in one of the most evocative and cursed places in Japan?