Baby jumping (El Colacho) is a traditional Spanish holiday dating back to 1620 that takes place annually to celebrate the Catholic feast of Corpus Christi in Burgos. During the act, known as El Salto del Colacho (the devil's jump) or simply El Colacho, men dressed as the Devil (known as the Colacho) in red and yellow jump suits jump over babies born during the previous twelve months of the year who lie on mattresses in the street. The "devils" hold whips and oversized castanets as they jump bravely over the unaware infants.