Don't forget
Lego Land. We love it, it is not Disney, but still nice. We always go to Knott's (look for great discounts at Ralph's grocery stores- not all the time). One big tip on Lego Land that we wish we had known, we noticed on the way in that a second day was only $8 more than one day! If your kids like to build with Lego's you can spend 2 days easily...
Laguna Beach. Great Vegitarian food to be had, there is a Krishna buffet, and a neat local place called Taco Loco a little south of the main beach. Check to see if the Lagunia art festival is on.
Huntington Gardens and Library. Neat place. Have tea there. It is a Museum. It is near to Pasadena which is a neat old town with intresting things to look at (buildings and bridges).
There is a neat Buddist temple that is open to the public in So Cal, Pomona maybe??
Another great Museum is the Norton-Simon.
Hertz Castle is a bit up the coast. Okay more than a bit, but a nice long drive.
Too many neat costal towns to list.
Check out the tide pools. There are several places along the coast.
Funny fact-" La Brea" means The tar, so "The la Brea Tar Pits" (which is how it is said) is "The the tar Tar pits".