Kazakhstan is the world's largest landlocked country.

An excerpt from the article 32 facts about Kazakhstan

This lack is compensated for by other bodies of water, such as the Caspian Lake, and the Aral Sea (unfortunately, as a result of the Soviet program to use the waters of Syr-Daria and Amu-Daria to irrigate huge cotton plantations, the body of water began to dry up and lost about 90% of its original surface area), the outletless Lake Balchash, which is half salty and half freshwater, Lake Kaindy created by an earthquake, hiding an underwater forest at the bottom, and others.