Rosalia was a wonderful guide. She arrived on time and got us to the gates of Chichen just before they open, which was great. She managed to avoid the crowds and kept us in shade and finished the tour right when the heat was intensifying. Her English is fluent. She provided thorough explanations and is a very good teacher. She asked questions that made you think instead of just giving you information. She then took us to a local restaurant and we a delicious meal. I would definitely recommend Rosalia for your Chichen tour.