Southern Italy forms the lower "boot" of the Italian Peninsula, containing the ankle (Abruzzo, Molise, Campania and southern Lazio), the toe (Calabria), the arch (Basilicata), and the heel (Apulia), along with the major islands (Sicily and Sardinia). Separating the "heel" and the "boot" is the Gulf of Taranto, named after the city of Taranto, which is at an angle between the heel and the boot itself. It is an arm of the Ionian Sea. The rest of the southern third of the Italian Peninsula is studded with smaller gulfs and inlets.