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
Music of the Heptanese western and Catholic influences on the Orthodox rite. The region is also notable for the birth of the first School of modern Greek classical music (Heptanesean or Ionian School, Greek: Επτανησιακή Σχολή), established in 1815. Folk dances of the islands include: Music of the Heptanese The music of the Heptanese is the folk music of the geographic and historical region of the Ionian Islands. It is based a lot on the western European style. It is dominant the use of guitars and mandolins, while the "kantadhes" (romantic serenades from the Ionian Islands) are very popular. The island of Zakynthos has