We booked a flight to Greece arriving in Athens the 9th of Sept and departing Athens the 20t of Sept. Would like to spend 3 or 4 nights on Santorini and 3 or 4 nights in Mykonos. Looking for advice in what would be a good mx in duration between Athens, Santorini, & Mykonos. Would like suggestions for hotels with a good view but still reasonable. And what would the best way to get to the islands? Fly or take a high speed boat? Also, we are thinking about booking it with Fantacy travel in Athens? Hope someone can give us advice as we have never been to Greece? Thank you.