The Dead Sea, which lies between Jordan and Israel, is the lowest lake in the world.
It is about 397 metres below sea level and it contains the saltiest water in the world.
This is because several rivers carrying minerals (including salt) flow into the lake,
but none flow out of it. The Surface water evaporates, but all the minerals remain behind.

The Salt makes it easy for swimmers to float – you can even read a book while floating
on your back. In fact the lake contains six times more salt than ordinary sea water so a
swimmer’s body is six times more buoyant than usual.