i usually use Viator when traveling for local tours. Our first trip to Athens with our 2 adult granddaughters and we have one full day to tour/explore before a Greek Isle cruise. I am looking for suggestions regarding length of tour, which sites we should buy tickets for and which site to visit but not necessarily go inside or get a ticket for.
Contact Fantasy Travel of Athens (www.fantasytravelofathens,com). They offer many tours in and around Athens and are well recommended in the Forum. They will also set up a tour to meet your specific interests. I used them to take a half day trip to Corinth and was pleased with their service.