This sea is famous for not just its name, but its incredible high salinity. Having a density of 1.24 kilos per litre, one can literally lie on the dead sea without being able to sink. So why is this area off limits? Well, one can float, but not for too long. The dead sea is a trove of concentrated chemicals, having a salt concentration of 31.5% — our salty oceans have an average concentration of 3.5%. This means that swimming is not only off limits, but nearly impossible since the high concentration would literally force anyone’s limbs back up to the surface. To make matters worse, if you were to consume any of this sea water by accident, it would cause very detrimental effects to special organs like the heart, liver etc due to salt intoxication! Though it is openly accessible to the public, they are only allowed to float, with close supervision, near the shallows, as all forms of swimming is prohibited.