My wife and I are taking a 19 day trip to (1st trip to) Greece in September. We are using the RS 15 day Athens and the PPP itinerary as a template. Question, we're renting a car at Athens airport to make the tour. I've heard much about getting Euros, but I've not heard much about getting fuel in some to the locations we'll be visiting while travelling in the PPP. From looking at Google (street view) Maps, it looks like we should be good through Olympia, but I'm not so sure what to expect between Olympia and Gytheio and then later while travelling from Monemvasia to Nafplio (I hope to take the road down to Leonidio and travel up the coastline to Nafplio.
Any info would be helpful to know prior to setting out. TIA.