Marina's Food Walk was hands down my favorite experience in Athens. I felt like I was being guided by both a local and a friend! I learned so much about recent Athenian history, contemporary Greek culture, and, of course, amazing and affordable Greek delicacies. Marina was very accommodating towards the fact that I'm a vegetarian. This tour is worth it's weight in gold and good a website into the heat of Athens. You must take this tour!
*Also, this experience was a joy for me as a solo female traveller.