The term "encierro" refers to a traditional event in Spain, particularly associated with the San Fermín festival in Pamplona. During the encierro, participants run in front of a group of bulls that are released onto a closed-off section of the streets. This event typically takes place each morning of the festival, attracting both locals and tourists. The encierro is a test of speed and bravery, as runners aim to avoid being gored or trampled by the bulls. Safety measures are in place, and many participants wear traditional white clothing with a red scarf. The event is steeped in cultural significance and draws large crowds each year.