There are at least 2,000 islands in Greece, only a few more than 200 of which are inhabited. And especially from May through October, lots of travelers love to hop from one to the other, with the help of ferry services that connect most, from the largest, Crete, to the party isle of Mykonos, to perhaps the most photographed island on the planet, Santorini, and many, many more. Here's a primer... keep reading