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
Kalamos (island) The island is geographically situated in the core of the inner Ionian marine protected area, the largest marine protected area in Greece. Kalamos (island) Kálamos (Greek: Κάλαμος, known in antiquity as Καρνος – "Karnos"), is a mountainous island and a former community in the Ionian Islands, Greece. Since the 2011 local government reform it is part of the municipality Lefkada, of which it is a municipal unit. It lies east of Lefkada, near the Greek mainland. It has an overwintering population of around 500 people, which is swelled substantially in the summer by tourists. The name "Kalamos" means reed in