The unique tradition featured during the La Fiesta de la Calle San Sebastián is the series of vibrant parades and music performances that celebrate Puerto Rican culture. Held annually in San Juan, this festival showcases local artists, musicians, and artisans, promoting a sense of community identity. Activities include traditional dances, singing, and various cultural exhibitions that highlight the island's rich heritage. The festival fosters unity while honoring Puerto Rico's history, and it often culminates in a lively street party that engages both locals and visitors in joyous celebration.