The Dhaka Times Desk Seems really weird. A strange blue pond in Japan! Looks amazing. How is the water in this pond blue?

Biei is a city on Hokkaido island in Japan. The city is originally located on the banks of a river called Bieigawa. On the bank of this river there is a very strange pond, the color of the water of which is very unusual blue. Not long ago, people did not know about this pond!
You will be surprised to know that the origin of this blue water pond is not natural and man has not created the blue water of this pond. A volcanic eruption near the city called Mount Tokachi caused mudflows. The pond was also excavated during the construction of a dam in an attempt to protect the city from flooding from this silt.
About the year 1988. The first eruption occurred at Mount Tokachi, which led to the construction of the dam and pond to protect the city.
But the interesting thing is that the color of the pond water is not always the same again. Each season looks different. Also, the angle or angle the viewer is looking at is also an important factor.
Many believe that in a certain degree of light and angle, the viewer can even see the blue water of this pond take on a green hue! However, no scientific explanation has been found so far as to why this happens.
Many people think that the water in this pond has very high levels of aluminum hydroxide. Additionally, the water may also contain naturally occurring minerals that reflect short-wavelength blue light. The reason is that the water itself has no color!