Humans are remarkably adaptable. We can swim in the Dead Sea, just like we can swim in the ocean. That's what's so cool about the Dead Sea. Because of the extremely high concentration of dissolved mineral salts in the water it's density is way more than that of plain old fresh water. In fact, people are so bouyant in this water, it makes it kinda tough to actually swim.
Most people like to just kick back in the water and read.
It almost looks as though this guy is sitting on an air mattress that has sunk below the surface, but he's not. If you think this is easy, try floating like this in a freshwater swimming pool. This lesson takes us back to the subject of plate tectonics. In this part of the world there is a rift forming where two crustal plates are spreading apart. The Sea is located right along the Rift Valley where the earth's crust is being stretched thin.