50 free summer things to do in San Diego! Here are some more ideas: Old Town, Balboa Park, Sea Port Village ,Point Loma Light House , Little Italy, Belmont Park (Amusement Park) , La Jolla Seal Beach, Carlsbad Cliffs , Temecula has a cool museum for kids Penny Picklewise...short trip different place, the museum is located in Temecula Old Town
Old Town - Around every corner more history awaits you. The finest in professional theatre, artisans, galleries and shops are within easy walking distance with free live entertainment, mariachis, dancers, period attire docents providing tours and more. Old Town San Diego is nestled in heart of San Diego, with more than 150 shops, award-winning restaurants, 17 museums, and historical sites.