We had an optional excursion to Cape Sounion to visit the Temple of Poseidon. A Cliff diving event caused major traffic jam, resulting in us taking 3 hours to return to Athens (a 1.5 hour drive).

Read more on the (Wiki link).

Temple of Poseidon Cape Sounion

Cape Sounion is the home of the ancient Greek temple of Poseidon. Poseidon was the Greek God of the sea and was second only in status to Zeus - the supreme Greek God. The temple's columns are Doric in style and are made from white marble.
The local Quails.
Me at the Temple of Poseidon, Cape Sounion.