We'll arrive saturday the 17th septembre, I think in the evening, at the hotel Euripidis ( or Evripidis ) and leave at the 19th. But it don't looks like having any freetime. Akropolis, Agora, Olympia stadium, harbor etc. and in the evening of the 18th we'll go to Kap Sounion then back to the hotel.
Why are so much has-to-bee-seen places in athens ( it's good and interesting, but so much walking ) ?