Peñíscola, often called the “Gibraltar of Valencia,” is a fortified seaport with a lighthouse. It was built on a rocky headland about 220 feet (67 m) high, and joined to the mainland Spain by only a narrow strip of land (Peníscola is a local evolution of Latin “peninsula”).
The history of the place goes back to the Iberians. Later the town became Phoenician, named Tyreche, then Greek, under the name Chersonesos (meaning “peninsula”). Then it was captured by the Carthaginians under Hamilcar Barca. The legend has it that this is the place where he made his son Hannibal swear an oath that he would never be a friend of Rome. [Ref. Wiki]