The saltiest place on Earth is the Don Juan Pond located in Antarctica.
The Don Juan Pond has an average salinity of 40 percent.
The Don Juan Pond is located in the McMurdo Dry Valleys and is one of the driest regions on Earth as it rarely rains or even snows.
Other saltiest places on earth are the Dead Sea, Great Salt Lake, Salton Sea, Mono Lake and the Pacific Ocean.
The Pacific Ocean has an average salinity of 35 ppt.
The Mono Lake has an average salinity of 87 ppt.
The Salton Sea has an average salinity of 44 ppt.
The Great Salt Lake which is located in Utah has a salinity of around 280 ppt at Gunnison on Bay.
The Dead Sea which is also known as the Salt Sea is a landlocked salt lake between Israel and Jordan and has a salinity of around 210 ppt.
The Dead Sea is also almost at full saturation of salt, so the salt easily precipitates out.