This amazing find has us in amazement. In Australia, there is a pink colored lake called Lake Hillier. Lake Hillier is a pink lake on Middle Island, the largest of the islands that make up the Recherche Archipelago. Some believe that Lake Hillier’s color, is the result of high salinity combined with a salt-loving algae species known as Dunaliella Salina and pink bacteria known as halobacteria. Those who swim the lake say that it is safe and fun.