Santa Barbara's Old Spanish Days Fiesta is an annual community-wide 5-day festival that begins on the Wednesday before the first Friday in August.

Celebrate Fiesta where it all began as Santa Barbara Trust for Historic Preservation presents Casa Cantina in the courtyard of the historic Casa de la Guerra. Part of the annual Old Spanish Days Fiesta celebration, locals and visitors alike are invited to relax, sip a cold drink, and celebrate at the home of Fiesta. Casa Cantina features beer and wine for sale.

When the first modern Old Spanish Days Fiesta celebration was held in 1924, parties and teas in honor of members from early Santa Barbara families were held at Casa de la Guerra. Casa Cantina, located across the street from De la Guerra Plaza in the heart of downtown's Fiesta activities, continues the site's tradition as a place for civic celebrations and special events. All proceeds benefit the Santa Barbara Trust for Historic Preservation and the continued restoration of Casa de la Guerra. SBTHP Members receive free admission to Casa Cantina.