If you plan to fly in a few days prior, or enjoy a long weekend in LA, then why not visit The Happiest Place on Earth!? Downtown Disney is also a great attraction with plenty of shopping and dining options.
We absolutely love In-N-Out! If you've never had it, it's a "must-try." Fortunately, there's one about 15 minutes from the wedding venue. They're open until 1:30am on Fridays and Saturdays, and 1am on every other night of the week!
If you have access to a car and want to explore some other areas, our favorite park is Rocketship Park in Torrance. It provides a beautiful view of the Port of Los Angeles, the Pacific Ocean, and a distant view of Downtown LA.
We had our first date at BJ's. It is a great restaurant with a great atmosphere and you have to make sure to get a pizookie! My favorite pizookie is cookies and creme and Greg's is chocolate chip, if you're looking for recommendations.