We stayed four nights post cruise last summer. We wished we could have had two more days. We did the Acropolis, Delphi and the Temple of Poseidon at sunset. One of our favorite outings was taking the ferry to Hydra for the day. We rented an apartment. Six women and one bathroom. Our cousin's wife was from Athens, so she joined us and was our personal tour guide. We did schedule private tours through Viator for our outings to Delphi and the Temple of Poseidon.