Situated in the same bay where
Finikas is, Poseidonia is scattered along the main road and the sea. Many of the houses are old mansions preserved in their original look. The beach is very small but just outside the village you can find the beach of
Agathopes, and between Poseidonia and Finikas there is a beach called
Voulgari. Actually, they are all so close that it is difficult to say where the border between Poseidonia and the rest is.