While in LA I wouldn't pass up Mt Palomar.
Bear in mind that it's a 2.5 hour drive south of L.A.
San Francisco (and Silicon Valley) is almost a 6 hour drive north of L.A.
If he only has a week, he'd be hard pressed to visit both regions and not end up spending scores of hours driving.
Also keep in mind the traffic in Los Angeles is horrendous. There are sections of freeway (I-405 between LAX and the San Fernando Valley, for example) that don't have rush hour, they have rush day. These freeways can be clogged from about 7AM all the way to 8PM or even later, and going both ways! And if there's any kind of incident, even a minor fender-bender or somebody changing a flat tire on the shoulder, that really screws the freeway up even more! And people are forever spilling and dropping things from their cars, like ladders and mattresses. L.A. drivers can't seem to figure out the idea behind rope and bungee cords. (I always used to joke that Christmas doesn't officially begin in Los Angeles until somebody drops the first Christmas tree onto the freeway.)
When you drive the freeways in L.A., KNX-1070-AM is your friend. That's the big all-news radio station and they broadcast traffic reports every ten minutes. Use it!
Edited by hm insulators, 11 August 2014 - 10:01 AM.