n.
Semicircular inlet of the Tyrrhenian Sea, southern Italy.
It extends southeastward for 20 mi (32 km) from Cape Miseno to Campanella Point. It is noted for its scenic beauty, which is enhanced by the volcanic hills surrounding it, including Mount Vesuvius . Its major port is Naples , and along its shore are ruins of the ancient cities of Pompeii and Herculaneum .