The lake known for its pink hue, caused by the presence of algae, is Lake Hillier. Located on Middle Island in Australia's Recherche Archipelago, this striking lake is famous for its vibrant pink color, which results from the presence of colored bacteria and high salinity. The lake's unique appearance attracts tourists and researchers alike, making it an iconic natural wonder. Unlike most lakes, Lake Hillier's color remains consistent year-round, defying typical expectations for color variations in water bodies. Its beauty contributes to Australia’s diverse environmental landscape.