by Allan » 04 May 2008, 13:38
There was a recent discussion in about island hopping from Symi that might help.
Using the Dodecanese Seaways high speed catamarans you can get to Kos, Kalymnos, Leros, Patmos, Lipsi and Astypalea for a day trip although you won't get much time on the more distant islands.
The company's website is currently unavailable and the published timetables only run until the end of May but it's reasonable to assume there will be a service of some sort while you are there and you can pick up a current timetable on the island.
It may be possible to get to Tilos for a day trip on the Anes Proteus ferry but again, you'll have to wait until the timetables are published.