Foça Castle, also known as Beşkapılar Castle, is a coastal fortification in İzmir Province, western Turkey. The castle is located in Foça ilçe of İzmir Province at 38°40′08″N 26°45′03″E. Its distance to İzmir is about 55 kilometres. The fortification wall around the ancient city of Phocaea was built in 590-580 BC.