Gnar pretty much covered it. Naming the main launches from north to south(correct me if I'm wrong) would be Verona, Elkorn, discovery park, miller park and Garcia bend.
Garcia bend is a one lane launch and you can get a lot of idiots out there that launch the boat by themselves and then tie it up on the launch side of the dock(blocking it) while they park and think that's ok. At miller and Elkorn few people can launch at the same time.
Discovery park has a great family atmosphere, especially on Sundays right where the American meets the sac haha
You don't want to launch anywhere south of Garcia bend. It's all terrible down there