There's so much to see in Greece in addition to Athens (which deserves to be visited). Hope you have at least a couple of weeks. The weather in March on the mainland should be lovely (probably still too cool on the islands to swim). How much time do you have? Perhaps we can help you with an itinerary. Have you read our Greece travelogues? You could let us know which places sound appealing to you. Regards, Don and Linda http://www.thetravelzine.com