The saltiest sea is the Don Juan Pond, located in Antarctica. However, in more temperate climates, the Dead Sea, bordered by Jordan and Israel, is well-known for its extreme salinity, making it one of the saltiest bodies of water globally. The high concentration of minerals and salts in its waters results from the area's geology and the evaporation rates, which exceed the inflow of freshwater. This immense salinity allows people to float effortlessly and contributes to the therapeutic qualities attributed to its mineral-rich waters.