Equinoccio de Primavera en Chichén Itzá

The spring equinox phenomenon at the Temple of Kukulcán, where sunlight and shadow create the visual effect of a serpent descending the pyramid's staircase. INAH runs a special operation March 20-22, 2026, with the astronomical equinox occurring at 8:46am (Mexico City time) on March 20. The 'descent of Kukulcán' is visible in the days surrounding the equinox. (Date shown is estimated from the event's typical annual timing — confirm with the organizer closer to the date.)