The Fiesta de San Fermín is a world-renowned festival held annually in Pamplona, Spain, in honor of San Fermín, the patron saint of the city. The event is most famous for the encierro, or running of the bulls, where participants race in front of a group of bulls through the narrow streets of the city. The festival also includes traditional music, dancing, parades, and religious ceremonies. It is a vibrant celebration of Spanish culture that attracts thousands of visitors each year. The Fiesta de San Fermín is known for its thrilling and sometimes dangerous events, but it also offers a unique blend of history, tradition, and festivity.