I am planning a trip in early September with my fiancé. I am thinking of flying into Istanbul then some of the greek isles and then fly back from Athens, or I could do the same the other way around (fly into Athens, then the greek isles and fly out of Istanbul). We have more or less 12 days for the trip. I can definitely take a flight between greece and turkey if that would save time. Any suggestions as to which isles I should visit in between and how long I should stay in each? I really want to visit Mykonos and Santorini.....any other isles I can visit on the way?