Poseidonia is in the gardens and in the pines, maintains houses that created the first genuine Greek urban class of Ermoupolis, the 19th century. Samples, large houses with rich decor, the orthodox temple of Saint Jone with statues of G. Veltsou and C.Petrokokkinou, work of respectively G.Vjtali and G.Mponanou, the club with oldest perhaps in Greece ground of tennis.

In the hill dominates the catholic temple of Saint Peter from 1860.

The sandy beaches Fetouri, Agathopes, Komito are from the most cosmopolitan.

In Agathopes in extraordinary abundance they bloom flowers of the sea, make that testifies her rich ecosystem.

           Resource : Municipality Poseidonias