I fished Garner State Park last week and caught a few nice Redbreast below the dam. There were a lot of people there walking the bank which could scare a lot of the bigger fish. The Frio River flows through the park. I was using a ultralight combo by Shakespeare with six pound test line,size five shot,and live worms as bait. I was not using a float and fished off the bottom. Fish by the deeper pockets for the best results. Let us know how you do.
Side Note: I fished from 9am till noon. I would have had better results during the afternoon bite and if fewer people were there.