Yeah, there's Haunt and HHN. I haven't been to HHN yet, but from what everyone says, it's easily the best Halloween event in Socal. Haunt is pretty awesome too, so defenitly go there also. At Haunt, if you're going on a Friday, a Saturday, or a Sunday, there is this neato thing called the Pre-Scare Dinner. The food is pretty tasty and you get into the park 30 minutes before opening. So take advantage of that if you go to Knott's.
---Brent