Agios Kosmas Marina is a marina located in the southern suburbs of Athens, Greece. It is situated on the Saronic Gulf, which is a popular destination for boaters and yachters who want to explore the beautiful Greek islands and coastline. Apart from its excellent facilities and services, Agios Kosmas Marina is located in a beautiful area. It is situated near the city of Athens, which is known for its historic sites, museums, and vibrant nightlife. The marina is also close to some of the most popular tourist destinations in the Saronic Gulf, such as the islands of Aegina, Poros, and Hydra.