The Caspian Sea (also known as the Mazandaran Sea, Hyrcanian Ocean, or Xazar Sea) is the world's largest inland body of water, often described as the world's largest lake or a full-fledged sea. An endorheic basin, it lies between Europe and Asia; east of the Caucasus, west of the broad steppe of Central Asia, south of the fertile plains of Southern Russia in Eastern Europe, and north of the mountainous Iranian Plateau of Western Asia. It covers 143,550 sq mi (372,000 km2) (excluding the highly saline lagoon of Garabogazköl to its east) and a volume of 78,200 km3 (19,000 cu mi). It has a salinity of approximately 1.2% (12 g/l), about a third that of average seawater. It is bounded by Kazakhstan from mid-north to mid-east, Russia from mid-north to mid-west, Azerbaijan to the southwest, Iran to the south and adjacent corners, and Turkmenistan along with southern parts of its eastern coast. This year Iranian Division alongside the Eastern European region division has come upon to have an event to cross this magnificent lake. 

More: on forum.