In route to the dead sea you can stop at a lookout point and stand at sea level. After sea level it is all down hill as you descend 1,388 ft below sea level to arrive at the Dead Sea.
Jordan and Israel share the 42 mile long body of water that is 8x saltier then the ocean. Turn off into a public beach, change your clothes and float away. The water is alone known to enrich you skin and some visitors cover their body with mud found on the shores. After using the onsite showers to wash up, your skin feels like it was soaked in an organic moisturizer. You can take a day trip or stay for a few days at a local Spa.