The Gulf of Naples (Italian: Golfo di Napoli; Neapolitan: Gurfo 'e Napule; Latin: Crater), also called the Bay of Naples, is a roughly 15-kilometer-wide (9.3 mi) gulf located along the south-western coast of Italy (province of Naples, Campania region). It opens to the west into the Mediterranean Sea. It is bordered on the north by the cities of Naples and Pozzuoli, on the east by Mount Vesuvius, and on the south by the Sorrento Peninsula and the main town of the peninsula, Sorrento. The Peninsula separates the Gulf of Naples from the Gulf of Salerno, which includes the Amalfi Coast.
The islands of Capri, Ischia and Procida are located in the Gulf of Naples. The area is a tourist destination, with the seaside Roman ruins of Pompeii and Herculaneum at the foot of Mount Vesuvius (destroyed in the AD 79 eruption of Vesuvius), along the north coast.
According to information from Mario Scaramella, twenty nuclear torpedo sea mines were alleged by the International Atomic Energy Agency to have been laid on 10 January 1970, by a Soviet November class attack submarine, in the Gulf of Naples at the time of the Cold War to destroy or deny access to the US Sixth Fleet; the mines are believed to still be on the seabed.