Mentioned by planetware.com
San Diego with Kids: 8 Top Things to Do | PlanetWare
"Families appreciate the beauty and abundance of recreational opportunities at Balboa Park. This expansive outdoor space includes 17 museums, playgrounds, a swimming pool, and over a dozen different gardens. Many visitors come here to enjoy the Pepper Grove Playground, a large kids' recreation area with slides, swings, a jungle gym, sandbox, playing fields, and picnic tables."