A short stop for pictures will be made at Vouliagmeni Lake. The lagoon formed about 2,000 years ago. It was once a large cavern that collapsed following an earthquake. The outline of the collapsed cavern roof can be clearly discerned from a distance. The lake has quite unique environmental conditions: it is supplied with warm seawater (28-35ºCelsius) via an underground channel spreading through a network of flooded caves, so its temperature never drops below 18 °C (usually ranges around 21-24 °C), whereas a freshwater spring reduces its salinity to brackish levels (14.5-18 psu). Because of its constant warm water temperature and its rich content in hydrogen sulphide, the lake functions as a spa since the end of the 19th century.

Varkiza is a picturesque sea-side village in the middle of the way to Cape Sounion. The area is very popular to Athenians for short excursions due to its beaches, shops and clubs.

The Temple of Poseidon is built on top of the hill, exactly at the meeting point of the Saronic Sea with the Aegean Sea. The temple was dedicated to God Poseidon, the lord of the Sea and it was there where all the sailors offered a last sacrifice to appease God Poseidon before leaving the safety of the Saronic Golf. According to Greek mythology, the Cape Sounion was the point from which Greek King Aegeus flung himself off the cliff to his death, upon the mistaken belief that his son had died. This ancient tragic tale involves a theme that is still used in modern story-telling today.

On the way back to Athens, the visitor will enjoy the Greek traditional cuisine at a local tavern with a view to the sea.