The Thermaikos Gulf is a body of water located in northern Greece, part of the Aegean Sea. It lies to the west of the city of Thessaloniki, which is the second-largest city in Greece. The gulf is known for its rich marine life and beautiful coastal scenery, making it a popular destination for both locals and tourists. The gulf is surrounded by several towns and villages, offering various recreational activities such as swimming, sailing, and fishing. Its waters are also significant for local fisheries, contributing to the economy of the region. The Thermaikos Gulf plays an essential role in the maritime activities of northern Greece.