Hypersaline lakes are bodies of water with a salt concentration significantly higher than that of ocean water. These lakes often form in arid regions where evaporation exceeds the inflow of freshwater, leading to increased salinity. Examples include the Great Salt Lake in the United States and the Don Juan Pond in Antarctica. The high salt content creates a unique ecosystem, supporting specialized organisms such as halophiles, which thrive in extreme conditions. These lakes can also exhibit striking colors due to the presence of certain microorganisms and minerals, making them visually distinct and ecologically important.