Elba (Italian: isola d'Elba, pronounced [ˈiːzola ˈdelba]; Latin: Ilva; Ancient Greek: Αἰθαλία, Aithalia) is a Mediterranean island in Tuscany, Italy, 10 kilometres (6.2 mi) from the coastal town of Piombino. Elba is the largest island of the Tuscan Archipelago. Elba is also part of the Arcipelago Toscano National Park, and the third largest island in Italy, after Sicily and Sardinia. It is located in the Tyrrhenian Sea, about 50 kilometres (30 mi) east of the French island of Corsica. The island is part of the province of Livorno and is divided into eight municipalities, with a total population of about 30,000 inhabitants, which increases considerably during the summer. The municipalities are Portoferraio, which is also the island's principal town, along with Campo nell'Elba, Capoliveri, Marciana, Marciana Marina, Porto Azzurro, Rio Marina, and Rio nell'Elba.