As a general rule, unless you're doing a short local trip a car is essential for nearly anywhere in California. The cities were developed when land was cheap and everything is spread out (okay, San Francisco is somewhat compact). But if you want to sightsee and hit up the touristy activities, museums, the Ocean, a studio tour, then you really need a car (you can squeeze a lot more into your day). Just check into parking rates at your choice of hotel.
And if you get the car then head to Santa Monica and take the Pacific Coast Highway North to Malibu and, time permitting, even further towards Oxnard. You'll spend half the trip in awe of the scenery and the other half doing math in your head trying to figure if you can afford to live there. It's like Israel but with fewer missile attacks .
↧