San Diego has a lot of places to shoot. Anza-Borrego is quite a drive from downtown if that is where your conference is. I would suggest looking at the Point Loma Light house (http://www.nps.gov/archive/cabr/lighthouse.html), San Diego Mission (http://www.thecaliforniamissions.com.../sandiego.html and http://www.missionsandiego.com/), Torry Pines State Beach (http://www.parks.ca.gov/default.asp?page_id=658), or Balboa Park (http://www.balboapark.org/). All are within a cab ride from downtown or a very short drive in a rental car. Enjoy.