Argo - Saronic Gulf is the common name of two adjacent bays, the Saronic Gulf and Argolic Gulf, located on the southeast coast of Greece. Argo - Saronic Gulf is one of the best known and most developed tourist areas of Greece, and due to protection from strong etesian is popular sailing area. Saronic Gulf is located between Attica on the west of and the Peloponnese on the east, while Argolic Gulf is located on the east coast of the Peloponnese. Argo - Saronic Gulf includes numerous islands, from which 5 are the most important: Aegina, Poros, Hydra, Spetses and Salamina. Saronic Gulf is due to its good location inhabited since ancient times, so right here had been developed two most important Greek cities, Athens, capital of Greece, and Piraeus, Europe's largest harbor.