The Black Sea is a body of water and marginal sea of the Atlantic Ocean between Eastern Europe, the Caucasus, and Western Asia. It is supplied by a number of major rivers, such as the Danube, Dnieper, Southern Bug, Dniester, Don, and the Rioni. About a third of Europe drains into the Black Sea, including the countries of Austria, Belarus, Bosnia and Herzegovina, Bulgaria, Croatia, Georgia, Germany, Hungary, Moldova, Poland, Romania, Russia, Serbia, Slovakia, Slovenia, Turkey and Ukraine.
The Black Sea has an area of 436,400 km2, a maximum depth of 2,212 m, and a volume of 547,000 km3. It is constrained by the Pontic Mountains to the south, Caucasus Mountains to the east, Crimean Mountains to the north, Strandzha to the southwest, Dobrogea Plateau to the northwest, and features a wide shelf to the northwest. The longest east-west extent is about 1,175 km.
Wikipedia https://en.wikipedia.org/wiki/Black_Sea
Coordinates 43°14'16.214" N 34°10'55.797" E