Can anyone recommend a local travel agency in Athens? We are trying to construct a multiweek trip for some islands, mainland Greece and Istanbul. With grade school children. We'd like to find someone who knows good, interesting family trips and can correspond well by email. Any recommendations?

Fantasy Travel has been receiving a lot of positive reviews lately:

http://www.fantasytravelofgreece.com/english/index.html

Another satisfied Fantasy Travel user!

I recently used Dolphin-Hellas Travel Agency in Athens, Greece to make arrangements for my trip in June. Uli
was the travel agent that I worked with.
She made our reservations for Athens,
Santorini, and Hydra and our flights between the islands. She was delightful to work with and very professional. For my past trips to Europe I had always made my own arrangements via email but had trouble getting replies when I began our trip plans. Uli responded to me daily with
information and suggestions. I could not have finished our trip and gotten all of the hotels that I wanted without her expertise. I believe that the web address is dolphin-hellas.gr. If not you can do a search on Google.
Hope that you have a great trip. We can't wait until June when we arrive in Athens.
AKNIC

Another vote for Uli at Dolphin Hellas, she was great.

We have used Uli at Dolphin Hellas for our last three trips to Greece. She is very good. We had a 6AM flight home and there was a taxi strike going on and at that time no metro to the airport. Uli arranged a private car for us and the driver picked us up at the hotel an 4am and we made our flight easily. No problem for Uli.

Thanks for the advice. We will check them out.