Hi,
I'm in the early stages of planning a trip to Greece in May or June. I'm try to figure out the most efficient route without backtracking. I want to visit Athens, Delphi, Meteora, Nafplio, and one island (Poros or Agenia).
Is the mainland trip possible without a car. I prefer not to rent a car. I have been a passenger in other European countries and driving is stressful.