I'm going to visit Santorini early June 2014 and would like to visit a 2nd island before taking a ferry to my final destination, Samos. Does anyone have a good suggestion, other than Mykonos, which has a one-day trip to Samos by ferry? I could even fly to that island directly from Athens when I arrive and visit Santorini before I leave for Samos if the ferry route is better that way...
I just don't want to have to stay overnight anywhere. This far ahead of June doesn't seem to bring up the ferry schedules and I'm trying to book rooms/dates so any information someone might have will be a great help!