The sea that is considered the saltiest body of water on Earth is the Dead Sea. It is located between Jordan and Israel and has a salinity of approximately 30%—nearly ten times saltier than most oceans. This high salt concentration makes it difficult for marine life to thrive, hence the name "Dead Sea." The Dead Sea is famous for its therapeutic properties, attracting visitors seeking to experience its mineral-rich mud and buoyancy due to its dense saline water. Additionally, it is a popular site for historical and archaeological exploration.