Adriatic Sea southeast, the Adriatic Sea connects to the Ionian Sea at the wide Strait of Otranto. The International Hydrographic Organization (IHO) defines the boundary between the Adriatic and the Ionian seas as a line running from the Butrinto River's mouth (latitude 39°44'N) in Albania to the Karagol Cape in Corfu, through this island to the Kephali Cape (these two capes are in latitude 39°45'N), and on to the Santa Maria di Leuca Cape (latitude 39°48'N). It extends from the northwest to the southeast and is wide. It covers and has a volume of . The Adriatic extends northwest from 40° to
Albanian Ionian Sea Coast to the mountainous terrain of the country, the western lowlands consists mostly of coastal lowlands and plains. The Albanian Ionian Sea Coast is known for its rugged natural beauty, with rocky highlands and a great marine life, while the Albanian Adriatic Sea Coast consist of sandy beaches and shallow coastal waters. The coastline covers an extensive part of the Ceraunian Mountains, which extends parallel immediately along the Ionian Sea, starting at Sarandë, running for over 100 kilometers in a southeast-northwest direction along the Albanian Riviera, to Orikum. The mountainous interior is fragmented into several massifs often reaching 2,000 metres above