We had an enjoyable time. The tour was very well organized and had no issues. Alex was always in contact for questions before as well as during our trip. He also helped us to accommodate a last change request in our itinerary too. I would suggest that for the walking tour to the Sierra Negra volcano, Takiri highly advises that carrying at least 2 liters of water per person is needed. Thank you for everything and to Alex our tour coordinator.