Napa Valley is really nice and scenic. I really do think that San Francisco is the main point in Northern California though….

Monterey,Santa cruz boardwalk. Pismo Beach. it depends on what kind of entertainment you want.

= There are literally hundreds of things to do here in LA. Here is my list of “must sees”. Visit as many as you have time for.:

Disneyland: The Happiest Place on Earth. Half a billion visitors can’t be wrong. #1 Destination.
Universal Studios: A theme park that grew out of a studio tour. #2 Destination.
Even if you don’t visit Disneyland or Universal Studios Tour, Downtown Disney District and Universal City Walk are very fun places to visit for shopping and eating. And they’re free to visit.

Hollywood: Enjoy the Walk of Fame, Entertainment Museum, Chinese Theatre and more. You can see a lot for free. The Hollywood & Highland complex is AMAZING. It has lots of shops and restaurants, and the Kodak Theater (home of the Academy Awards). I also like the El Capitan theater, right across the street, where Disney shows their movies. And the Hollywood Bowl is a GREAT place to listen to concerts outdoors.

Olvera Street/Union Station: Olvera Street is the birthplace of LA, and it emphasizes our Mexican heritage. In addition to the Avila Adobe (oldest building in LA), you can eat at some pretty good Mexican Restaurants, do a little shopping, and taste a churro. If you don’t want to go to Tijuana, this is as close as it gets without going there. Union Station has great architecture from a bygone age. Also, you are 2 blocks from Phillippe’s (see below).

Rodeo Drive, 90210: Packed with exclusive shops, full of gawkers. They all came to enjoy the excess. Free, unless you intend to buy something.

Venice Beach: Los Angeles kitsch and over-the-top culture at its best. Here you’ll find Muscle Beach, street performers and tacky shops galore. Fun, VERY interesting, but I avoid it after dark, when it gets a little TOO interesting for my taste.

Santa Monica: Beach and Pier: Great beach scene and a classic seaside amusement park, complete with antique carousel that has been in a lot of TV and movies. (The Sting and "Three’s Company" come immediately to mind). After visiting the pier, you can ride a bike south a couple miles to Venice Beach. Third Street Promenade – Downtown Santa Monica’s shopping promenade is often the scene of movie star-sightings. Just north of Santa Monica Pier.