The archaeological site of the Oracle of Delphi – Day trip The Oracle of Delphi was dedicated to Apollo and is said to be the most important oracle of ancient Greece. Delphi is about 150 km from Longos. It is situated on the slopes of Mount Parnassus at the Pleisto River valley. Classic Delphi is said to be the “Navel of the Earth” of the ancient world (Omphalos). The oracle was well-known not only in Greece. The festival honouring Apollo was also designated pan-Hellenic (for all Greeks) and was second to the festival honouring Zeus in Olympia. The holy way, the treasury of Athens, the Polygonal "lesbian" Wall, the Temple of Apollo, the site of the subterranean oracle, the theatre and the stadium are some of the most important archaeological sites. Most findings are exhibited in the museum. Journey to Delphi: by car ferry from Aigion to Aghios Nikolaos (mainland) or over the bridge Rio - Antirion (Charilaos Trikoupis). On the way you may visit the lovely villages of Nafpaktos, Galaxidi and Itea.