Oaxaca Street Food Tour
Great overview of street food in Oaxaca and a great starting out point for a trip, as it will familiarize you with all of the different types of food you could be eating and gives you a great history of where that food comes from. The one thing I wish is that the trip charged you for all of the food up front so you didn't have to work out the costs among participants at each place - it would be much easier! But it's a small quibble - bring small bills and change if you take part in this tour.
Excursion to Monte Albán and Cuilápam de Guerrero
Very knowledgeable guide, I felt very comfortable over the course of the tour. On-time pick up, friendly and fun atmosphere and great value!
Temazcal Experience with Massage and Sauna
Great service and experience!! Highly recommended ;)