Save the Date: March 7th for the 12th annual San Diego Festival of Science & Engineering, the largest STEAM Festival in Southern California! The Festival kicks off with Expo Day at Petco Park, where 24,000 community members flood into the stadium for a free day of family-fun and learning. You and your family are invited to interact with 150+ exhibitors and STEAM professionals from San Diego's local science, technology, engineering, arts, and math (STEAM) industries.