Private tours
Your own guide, your own pace, priced per group rather than per person on most listings.
Prices run from €31 to €1512, and half of the 51 priced listings cost €139 or less. Most take 3 hours to 5 hours. The best reviewed with at least 100 reviews is Athens: Women in Ancient Greece Private Tour (5.0 from 111 reviews). The most reviewed is Acropolis & Acropolis Museum: Private Tour with Expert Guide (374 reviews).
For the operators we researched and recommend, see our food tours and cooking classes in Athens, or the experiences overview.