Marina Alimou is one of the largest marinas in Greece, boasting 1000 berths for yachts, as well as well-equipped walking and entertainment areas. The municipality of Alimos has a rich history, and Thucydides, the first historian of antiquity, was born and raised here. The name "Alimos" means "sea," and it marks the starting point of the first organized beaches near Athens, formerly called Akti tou Iliou, which are filled with beach bars from morning till night. Poseidon Avenue is home to the Allied Cemetery, which honors the fallen soldiers of Greece's allies during World War II.