Ayvalık is a seaside town on the northwestern Aegean coast of Turkey. It is a district of the Balıkesir Province.Ayvalık is a district in Turkey's Balıkesir Province on the Aegean Sea coast, facing the Greek island of Lesbos. It is situated on a narrow coastal plain surrounded by low hills to the east which are covered with pine and olive trees. Ayvalık is also surrounded by the archipelago of the Ayvalık Islands on the sea and by a narrow peninsula in the south named the Hakkıbey Peninsula.
Ayvalık was located in the ancient region named Aeolis in antiquity. The ruins of three important ancient cities are within a short driving distance away from Ayvalık: Assos and Troy are to the north, while Pergamon is to the east.Ayvalık is also close to Bergama (ancient Pergamon) which is another important attraction for tourists with its ruins, dating back to antiquity.