The Dead Sea is the lowest land-based elevation on Earth. It is a salt lake that lies in the Jordan rift valley, and its main tributary is the Jordan River. It is 304m deep and considered the deepest hypersaline lake globally.
Magnesium, sodium, and calcium chloride are high here. Due to its elevation, the water doesn’t flow anywhere else. The water only decreases by steam. This is why the water volume doesn’t go up and remains at the same level. Even if the water stream, it remains the salt and minerals.