This was a small protest of the closed parks in San Diego on April 19th, 2020. The next day Mayor Faulconer announced that the parks would be opened. Some parks were opened and then only partially. But we did get some immediate relief. Especially, the part of Balboa Park shown in the video was opened to individuals and family units walking and exercising, as long as it was not in large groups.
There was a larger protest in downtown San Diego on the same day and time about generally opening California. There was also a protest of about 100 people in Encinitas on the next day, demanding the opening of the beaches and parks.