From what I read here you should launch from either Holly Bay or Grove due to vandalism. Both places charge a fee. I launched at Grove. It cost $5. We got permit at the marina. Holly Bay was closed when we were there Saturday due to the recent houseboat fire. We saw trout busting on the surface at various points not far from marina. The one I caught came on a jerkbait. I was not sure at first what it was when I saw it busting so I threw my bait immediately to the spot and worked it pretty quick. It hit once, I missed it but then it hit again and I caught it. It was typical size of the ones KDFWR stock.
Good luck to you if you go.