Afternoon Tour Driving along the coastal road past the wonderful beaches of Glyfada, Vouliagmeni, Varkiza and countless coves, you have a splendid view of the Saronic Gulf. A crowning feature of the tour Cape Sounion is, the Temple of Poseidon, god of the sea. Standing atop sheer cliffs overlooking the Aegean Sea, the marble temple has served as a landmark for sailors from ancient times until today. The "Sanctuary of Sounion" is first mentioned in the Odyssey, as the place where Menelaus stopped during his return from Troy to bury his helmsman, Phrontes Onetorides. Construction on the grand Temple of Poseidon began around 500 BC but was never completed; the temple and all the votive offerings were destroyed by the Persians in 480 BC. The Temple of Poseidon that now stands at Sounio was built in 444 BC atop the older temple ruins. After the guided tour of the Temple we return to Athens approximately at 7pm.