The spot I had the best success with is a 15 minute walk down the first path to the south at the very end of the parking lot. Look beside the caretakers trailer, in between where the seasonal cafe is, there's a trail heading south, heavily brushed in, that's what you want.
You'll see several small pools along the way, but you know you've hit the best one, on your left, when you see the old retaining wall made of cinder blocks. Room to fish for just 2 guys. The empty dew worm containers are always a good sign
If you have a canoe, there's an even better option: stop at the gate 1 km before the parking lot and launch up the system of sloughs to the south; you'll find it comes out into a large interconnected series of pools that are pefect for isolated fishing with very good results (if you like aggressive sportfish).
Tight lines.