Environment of Azerbaijan
The Caspian Sea is the largest lake on Earth by both area and volume, with a surface area of 371,000 square kilometres (143,244 mi²) and a volume of 78,200 cubic kilometres (18,761 mi³). It is a landlocked endorheic body of water and lies between Asia and Europe. It has a maximum depth of about . It is called a sea because when the Romans discovered it they tasted the water and found it to be salty. It has a salinity of approximately 1.2 percent, about a third the salinity of sea water.
Volga–Baltic Waterway
The Volga–Baltic Waterway, formerly known as the Mariinsk Canal System (Russian: Мариинская водная система), is a series of canals and rivers in Russia which link the Volga River with the Baltic Sea via the Neva River. Volga–Baltic Waterway connects the biggest lake on Earth, the Caspian Sea to the World Ocean. Its overall length between Cherepovets and Lake Onega is .