Caspian Sea
The sea has a surface area of 371,000 km (143,200 sq mi) (not including the detached lagoon of Garabogazköl) and a volume of 78,200 km(18,800 cu mi). It has a salinity of approximately 1.2% (12 g/l), about a third of the salinity of most seawater.
Azerbaijan–Kazakhstan relations
One of priority directions in bilateral cooperation is co-ordination of legal status of the Caspian Sea. On November 29, 2001, Presidents of the two countries signed the "Agreement on Delimitation of the Bottom of the Caspian Sea" during a CIS summit in Moscow.