Bonifacio is a commune at the southern tip of the island of Corsica, in the Corse-du-Sud department of France. Its inhabitants are called Bonifaciens, feminine Bonifaciennes. The commune in this case is identical to the canton and is the largest commune of Corsica.
The town is served by Figari Airport (car or taxi required), and ferry service to Sardinia is available multiple times daily.
Bonifacio is located directly on the Mediterranean Sea, separated from Sardinia by the Strait of Bonifacio. It is a city placed on the best and only major harbor of the southern coast and also is a commune covering a somewhat larger region including the offshore Isles Lavezzi, giving it the distinction of being the southernmost commune in Metropolitan France. The commune is bordered on the northwest by the canton of Figari and has a short border on the northeast with the canton of Porto-Vecchio. The combined border runs approximately from the Golfe de Ventilegne on the west to the mouth of the Golfu di Sant’Amanza on the east. The coastline circumscribed by the two points is about 75 kilometres (47 mi).
The city of Bonifacio is split into two sections. The vieille ville (old town), or la Haute Ville (the Upper city), on the site of a citadel, is located on the promontory overlooking the Mediterranean Sea. The citadel was built in the 9th century with the foundation of the city. The Citadel has been reconstructed and renovated many times since its construction and most recently was an administrative center for the French Foreign Legion. Today it is more of a museum. Historically most of the inhabitants have resided in the Haute ville under the immediate protection of the citadel. The harbor facilities and residential areas below, la marine, line the narrow shelf of the inlet and extend for some distance up the valley, giving the settlement a linear appearance and creating a third residential section limited by St. Julien on the east.
The city and its fortifications also extend for some distance along the cliff-tops, which are at about 70 meters (230 ft) elevation. The cliffs have been undercut by the ocean so that the buildings, which have been placed on the very lip of the precipice, appear to overhang it. The appearance from the sea is of a white city gleaming in the sun and suspended over the rough waters below.