POROS is about 30 nautical miles from the principal port of Piraeus in the Saronic gulf. Being so close to the Peloponnese mainland, it is very accessible by road or sea.

Poros is, in fact, two islands. Poros Town, with its harbour, shops and tavernas, forms the major part of Sferia, the smaller island. Anchor House is situated in the town, five minutes walk from the harbour. The larger island, Kalavria, lies across the canal bridge and for a large part is pine covered. The best beaches are on Kalavria as is the ancient site of Poseidon Temple.

The beaches of Neorio, Askeli and Monasteri are served by the local buses at the harbour. Alternatively, one can take a taxi, or hire a car or a scooter. One finds that transport is relatively inexpensive on Poros.

There are excursions available for those who wish to explore further afield. The famous 4th to 2nd Century BC ancient amphitheatre at Epidavros is only an hours drive away on the mainland.