Orange county has plenty of good park lakes.
Eisenhower, Mile Square, Laguna, and tri-city are all good park lakes, and i've caught nice bass and panfish from all of them.
Each lake is different, and finding the right presentation is crucial to angling success. Try this- Take a zoom fluke, and hook it through the belly with a dropshot hook.
If you hook it right, the fluke will sink horizontally. When it reaches the bottom, GENTLY GENTLY pull up smooth and slow, it will perfectly mimic a fish with an injured swim bladder. First time i did this, i got slammed by a fat bass.