Arm Point Park which is run by Anchor Inn marina. You can set tent pretty close to water and fish. Good luck fishing and happy camping. Since I don't fish tawakoni anymore, I'll let you in on a little secret, this is the best bank fishing spots for many species of fish. With a couple of surf rods and a pair waders, you should catch no less than a cooler full of fish.
Why do I go fishing? To catch a box of fish and/or some quality time under the sun. Thank Heaven I never fail fishing in Texas, catching box fish or plenty of sunburn.