I am trying to figure out our Greece vacation and I am confused. I am thinking of 2 days Athens and then 11 day between 3 islands...possibly Mykonos, Santorini, and Naxos. Does this sound like too much? How many days each place and what areas on each island? Should we do it differently and include Crete? How long does it take to travel between islands and are the ferries nice (will we be able to sit outside, tan and enjoy the view or will we be sandwiched in a tight space below deck)? We have 3 teenage daughters and would like a variety of beach and excursions (ATV, boats...). Please advise as the hotels are disappearing so quickly.