There’s just something about clear water that captivates us with its serenity and pristine beauty. And although we most often associate crystal or brightly colored water with the Caribbean or the South Pacific, it’s not just oceans that are capable of such clarity. Many lakes are brown and murky, but some are so clear that rocks and logs can be visualized below the sparkling surface, and the bottom may seem to be so close that even a deep lake appears shallow. Fish may also be spotted swimming along—but actually, clear lakes might not have as many fish in them as the brown kind. Murky water tends to have more organic material and algae, which fish eat, and so can support more aquatic creatures.
But, a brightly colored lake might also have certain types of algae that give it its amazing hue. The location of a lake can also affect its water clarity—high up in the mountains, there’s less runoff to cause dirt and dead plants to get into the water. Glacial lakes, from melting glaciers, contain something called “glacial flour,” a powdery mix of silt and clay that looks turquoise when the light reflects off it. Let’s take a look at some clear lakes that seem too gorgeous to be real. But thanks to the wonders of nature, they totally are—just like these naturally beautiful pink lakes from around the world.
Source : https://www.rd.com/list/most-crystal-clear-lakes-in-the-world/271