Dead sea is 34.2% salt and rest water - which is about 9.6 times more salty than ocean water - making it denser than our Human body helping us float without any effort. Also, the surface is 427 meters below sea level making it the lowest known place on Earth. The Dead Sea gets its name due to the absence of any life forms in its water.
Masada is an ancient fortress ruin located atop a barren rock plateau overlooking the Dead Sea. Masada is historically important to Jews and one of the most popular tourist destinations of Israel. It was at Masada where one of the last known Jewish resistance came to an end during the First Jewish-Roman war.