Boomers is such a fun place to take the family. There's a little something for everyone. From bumper boats to miniature golf to arcade games. The grounds are well maintained and are kept fairly clean. The location is easily accessible from the freeway and the prices are fair.
Wild Rivers is a super fun place to cool off and beat that summer heat. The prices aren't too outrageous and if you buy a season pass and use it, it's pretty affordable. The grounds are well maintained and very clean. They have a wide selection of waterslides and attractions so that there's something for everyone in the family.
Camelot has slowly become run down over the years and it is no longer in the best shape. But it is still just as much fun as ever. The arcade has a pretty good selection of games, and, well, miniature golf is always fun. I'd definitely recommend going mid-week to skip the crowds, though.
Castle Park in Riverside is just a so-so place to take the family. They have miniature golf and a few "rides" which are carnival type rides, and also an arcade. It is reasonably priced, otherwise it wouldn't be worth it at all. Overall, it's a bit run down and in some serious need of renovation, but it's still fun.
Bookman in Orange is probably the best used bookstore I've been to in a long time. The selection is amazing, I could spend all day browsing around. They have books in just about any category you can imagine. The prices are fair and the store is clean and neat with a very helpful staff.
This is a cute little store with an ok selection. It seemed a tad bit overpriced for used books, but hey, they have to pay their rent, I guess. The staff was friendly and hands off, but they definitely let me know they were there if I needed them. They were curled up on the couch with a book when I walked in - too cool!
Adventure City is a VERY small amusement type park for kids under, oh, about 8 or so. Admission is fairly reasonable and the staff is pretty friendly. The park was very clean. They have about a dozen carnival type rides for which the lines were not too long (even on a weekend). There is also a great little petting zoo. My kids had a blast.
The Santa Ana Zoo is very small, but the plus side to that is that the kids can easily walk the whole thing without getting too tired. The selection of animals is very small - mainly a few different birds and monkeys. There is a small train ride for an extra $3 and an elephant ride for an extra $5. There is also a petting zoo which was probably the highlight of the whole trip.
The Friends of Yorba Linda Public Library Book Corner is a great place to go for used books. The selection is not as good as a used book store but the prices are much better. It's located downstairs from the main library so it can be tough to find. The parking lot for this facility is not the best and gets crowded and full at popular times.
The Corona Public Library is awesome. They have a pretty good selection and the staff is usually pretty friendly (which can be hard to find at a library). The facility is recently updated and very well kept. They offer lots of services besided just checking out books. The friends of the library book sale is especially wonderful.