If you're a fan of live theater productions, catch a show at Casa del Flamenco Theater. Look online for scheduling details.
You'll quickly see why this arts and culture attraction is on the itineraries of many travelers to Santa Cruz. After you've paid the entrance fee, wander inside and stick around a while. Looking for other things to see and do close to Casa del Flamenco Theater? Check out Seville Cathedral, Alcazar and Plaza de España.