South Walton Paddling/Fishing

I posted this over in the general advice section then realized it might make more sense here. I’m heading to Seacrest, Florida first of August. It’s just a general family type vacation, but I plan to take a tandem canoe and a kayak so my daughter and her friend and I can paddle and fish a little. We don’t plan to go out in the gulf, but I know they have the dune lakes down there. Any tips for those? What about other opportunities? Would love to catch a few flounders, reds, specks, etc. if possible.