The Caspian Sea is located between Europe and Asia, to the east of the Caucasus Mountains. It is the largest inland body of water in the world, has a third of the salinity of most seawater, and is variably classed as a large lake or as a sea. It is bordered by Kazakstan, Russia, Zerbaijan, Iran, and Turkmenistan. It is also known for its caviar and oil industries.