I had to look up that area. Whew! That looks very cool.
I wanted to mention that TexasKayakFisherman.Com seems to have a larger concentration on that website of kayakers down on the coast fishing in saltwater. I'd post over there, too, just to see what is up, who might be available, other trips going on.
I take it that these "lakes" are subject to the tides but sort of land-locked and not rough water???