Poros is a small Greek island in the southern part of the Saronic Gulf, about 58km /31 nautical miles south from Piraeus and separated from the Peloponnese by a 200m wide sea channel. In antiquity Poros consisted in fact of two islands, Sphería and Kalávria, but the last explosion of the Méthana volcano in 273 BC radically changed the morphology of the area. Sphería was cut off from Méthana, and in this way Poros took its present form.
The Town with its neoclassical edifices is constructed on the slopes of a hill and is the center of most activities on the island. For those who appreciate history, there is the Archaeological Museum of Poros at Korizis Square, the remains of the Sanctuary of Poseidon which was the centre of the Kalaureian amphictyony and the old historical Holy Monastery of Zoodochos Pigi.
Most of the beaches are along the south green coastline of the island and are easily reachable due to the limited size of the island.
Τhe mystique of Poros was acknowledged by significant litterateurs and artists.
The Nobel Prize winning poet George Seferis has written about Poros Island in the mid-30s:

"... It has something of Venice: the canal communication between the houses being by boats, luxury, idleness, sensual temptation, something lustful. A place for international lovers, providing much magic...."