Which lake is the saltiest natural lake in the world?

Don Juan Pond, in Antarctica’s McMurdo Dry Valleys, is famous for its exceptionally salty water. It is not a large lake, but its brine can reach salinities much higher than seawater, allowing it to stay liquid in freezing conditions. The pond has been studied closely because it resembles some extreme environments that might exist on other planets. Its salt composition is dominated by calcium chloride, which lowers the freezing point dramatically. While salinity can vary, Don Juan Pond is among the most extreme natural lakes known.