The equinox phenomenon can actually be viewed in Chichén Itzá on the El Castillo pyramid for four days, so if it is raining or cloudy or you just can’t get there, it is visible from the 20th – 23rd of March . During the equinox the sun casts its rays on the pyramid, forming seven isosceles triangles that resemble the body of a serpent 37 yards long slithering downwards until it joins the huge serpent’s head carved in stone at the bottom of the stairway. It is said this snake is trying to make it to the well of sacrifice which is in the same direction. At the Mayan site of Dzibilchaltún, March 21  at 5 am is the day and time of the equinox when the sun sends its beams through the two windows of the Temple of the Seven Dolls providing a lovely spectacle of Mayan exactitude. Dzibilchaltún is located 16 km north of Mérida and while it doesn’t have the giant pyramids of Chichén Itzá and Uxmal, it does have its own special claims to fame such as its “museum of the people”, Museo del Pueblo, the refreshing cenote where you can take a swim, and the Franciscan chapel that blends in with the archaeological site. For Dzibilchaltún, you should try to get there just before sunrise since the event (equinox show) happens at 5:00 am and lasts only a few minutes. For Chichén Itzá, you want to be there some time before 3 pm. The show will last for about an hour. Be prepared to share the event with a huge crowd. Source: Yucatan Today
