* The Mediterranean Sea: The Mediterranean Sea is a semi-enclosed sea that lies between Europe, Africa, and Asia. It is connected to the Atlantic Ocean through the Strait of Gibraltar. The Mediterranean Sea is the largest inland sea in the world, and it has a coastline of over 46,000 kilometers.
* The Adriatic Sea: The Adriatic Sea is a gulf of the Mediterranean Sea that lies between Italy and the Balkan Peninsula. It is about 1,200 kilometers long and 200 kilometers wide. The Adriatic Sea is relatively shallow, with an average depth of only about 130 meters.
* The Tyrrhenian Sea: The Tyrrhenian Sea is a gulf of the Mediterranean Sea that lies between Italy and the islands of Sardinia and Sicily. It is about 600 kilometers long and 400 kilometers wide. The Tyrrhenian Sea is deeper than the Adriatic Sea, with an average depth of about 2,000 meters.
* The Ionian Sea: The Ionian Sea is a gulf of the Mediterranean Sea that lies between Italy and Greece. It is about 600 kilometers long and 200 kilometers wide. The Ionian Sea is the deepest part of the Mediterranean Sea, with an average depth of about 4,000 meters.
* The Ligurian Sea: The Ligurian Sea is a gulf of the Mediterranean Sea that lies between Italy and France. It is about 200 kilometers long and 100 kilometers wide. The Ligurian Sea is relatively shallow, with an average depth of only about 1,200 meters.