Most of Ukraine’s rivers flow slowly in wide valley. Rivers flowing off the Carpathians and Crimean Mountains are narrow, shallow and fast.
Ukrainian rivers, lakes, ponds have an important role in water supply and are used as sources of energy. Navigable rivers are important for transport.
The Dnieper River flows into the Black Sea and it’s 2285 km long. It’s the third largest river in Europe after the Volga and the Danube.
The Dniester is another large river; it flows along the borders of Ukraine and Moldova into the Black Sea.
The Danube is an important water route linking the country with many European countries.
There are over 3000 lakes all over Ukraine. They are situated mostly in Polissia, the Black Sea lowlands and the Crimea.
Ukrainian seas also play an important role in the country’s economy. The southern coast of Ukraine is washed by the Black Sea and the Sea of Azov. The Black Sea has a surface area of 422 000 sq. km. Its depth is 2210 m. It has only a few islands in it. It’s curious but in the northwest the sea is only 30–60 m deep. The important ports of the Black Sea are Odessa, Kherson, Mykolaiv and Sevastopol.
The Sea of Azov isn’t so picturesque as the Black Sea. Nevertheless, its wonderful sandy beaches on the northern coast attract tourists and it’s very rich in fish life. In winter The Sea of Azov freezes over. It’s a small sea, and is the world’s most shallow sea; its average depth is 5–7 m.