Many people or scientists did not see it. Or no pictures of it, but it is present.
A group of researchers went to Antartica to see it, and took pictures. Their ideas were such a result that resulted in such a thing as impossible to survive in the cooler weather, although many of the below zero were cold. The current idea is that there are many amounts of iron on the ground and the color of the water due to sulfur. It's just the idea, why the water was not like red-colored ice cream and there was no answer.