Islote de Sancti Petri
The Islote de Sancti Petri is a small barren island belonging to the municipality of San Fernando, Cádiz in the province of Cádiz and the autonomous region of Andalusia, Spain. It is close to the coast and south of Cadiz city. For many years, the island was a restricted military zone, but it is now under the control of the Spanish Environment Ministry. In the first century BC the Greek historian Strabo mentioned in his book "Geographica" that the Tyrians founded Gadeira, building a sanctuary to Melkart, known as Hercules to the Greeks, in the eastern  part of the island and the city in the western part. Castle. The ruins of an eighteenth-century castle remain on the island; the tower of the castle has been substantially rebuilt, and it is now in use as a lighthouse. It was declared "Bien de Interés Cultural" in 1993. The name, Sancti Petri, also applies to the beach on the mainland, in Chiclana de la Frontera, directly opposite the island.