We arrive in port of Piraeus 7am and our return flight is 10 following morning. What do you suggest we do with our time? I think we should book a hotel near the airport, but then we have to go there and drop off our luggage which would take time from our day. We will have spent a day in Athens in the beginning of our tour...but it doesn't look like we are going to Delphi. Do you think we can squeeze that in?