Countries bordering Adriatic sea: The Adriatic Sea is a part of the Mediterranean Sea positioned between the eastern coastline of Italy, and countries of the Balkan Peninsula, from Slovenia, south through Croatia. Montenegro, and to Albania. The southern boundary of the sea ends in the Strait of Otranto between Albania and Italy’s Salento Peninsula. Immediately south of that strait the Ionian Sea begins.

Countries bordering Black sea: The Black Sea lies between southeastern Europe and Asia Minor. Excluding its northern arm, the Sea of Azov, the Black Sea occupies about 168,500 square miles (436,400 square kilometers). It is connected to the Aegean Sea through the Bosporus, the Sea of Marmara, and the Dardanelles, and has been of critical importance to regional commerce throughout the ages. This major inland sea is bordered by six countries — Romania and Bulgaria to the west; Ukraine, Russia, and Georgia to the north and east; and Turkey to the south. Additionally, it is impacted by another 10 nations through the five major rivers that empty into the Black Sea, the largest of which is the Danube River.

Countries bordering Capspian sea: The five countries Azerbaijan, Kazakhstan, Russia, Turkmenistan and Iran share their boundary with the Caspian Sea

Countries bordering Mediterranean Sea: The countries surrounding the Mediterranean in clockwise order are Spain, France, Monaco, Italy, Slovenia, Croatia, Bosnia and Herzegovina, Montenegro, Albania, Greece, Turkey, Syria, Lebanon, Israel, Egypt, Libya, Tunisia, Algeria, and Morocco; Malta and Cyprus are island countries in the sea.

Countries bordering Red sea: There are six countries (Saudi Arabia, Yemen, Egypt, Sudan, Eritrea, and Djibouti) bordering the Red Sea.

Source: Atlas