The largest part of the nation lies between two rivers, the Dniester and the Prut. The western border of Moldova is formed by the Prut river, which joins the Danube before flowing into the Black Sea. Moldova has access to the Danube for only about , and Giurgiulești is the only Moldovan port on the Danube. In the east, the Dniester is the main river, flowing through the country from north to south, receiving the waters of Răut, Bîc, Ichel, Botna. Ialpug flows into one of the Danube limans, while Cogâlnic into the Black Sea chain of limans.