You're on a main lake point..... fish first few hours before and after sunup and few hours before and after sundown for cats near wherever the wind is blowing into. Fish where the wind is blowing straight on and also where the land makes an edge break from the waves. Also try that point with the dock on it on the S side any time that it's not loaded with people.
FYI you would most likely catch some crappie on that jetty and dock at night, and the docks on the boat ramp, along with on the rocks too. Jig up and down the pier, I'm sure someone has dropped some cover there somewhere.....it's got lights so they will be there.... Plus there's a massive brush pile the size of a school bus swimming distance off that park that holds good crappie. If you can even get a tube or pool floaty you can fish it.