The festival that celebrates the spring equinox in Mexico is known as Equinox at Chichen Itza. This event attracts thousands of visitors to witness the phenomenon of the sun creating an illusion of a serpent slithering down the pyramid during specific times of the day. It signifies the balance of day and night and is rooted in the Mayan culture. The celebration includes rituals, traditional music, and dancing, emphasizing the connection to nature and ancient traditions.