In addition to that little pocket area by the streets with the picnic tables, there is a playground area for the kids, racquetball courts, baseball diamonds, and some other sports-like fields.
The playground equipment is the standard red-and-yellow model, or rather, models: One for the little kids, one for the older ones. Plus, there are swings.
There were, as I'm beginning to think normal (and good), plenty of trees--at least three kinds planted at at least two different times, plus a rather forlorn looking sapling all on its lonesome. I like the way Huntington Beach does trees: They seldom seem to go for the popsicle-stick model, but instead allow the trees to spread and twist a bit. It's much more interesting.
The good news is that the picnic tables in the park are actually in the shade. The bad news is, the park is at the intersection of Main and 17th, so your view is going to be less "bluebirds and butterflies" and more "SUV's and minivans." At least you'll be comfortable while you have it.
You might spot a squirrel or two while you're dining, and maybe a few small flying things, though I scuffd up fewer than I expected of those. Maybe they didn't like the fact that the ground was sopping wet?
Bring your own water. There's no fountain. On the other hand, there don't seem to be any restrooms, either, unless you count a very old, smelly port-a-potty that will probably be gone by the next visit.