the browns point launch is private. you can get a membership/key to the gate for $45 per year if you are a local. or you could go south on marine view drive to Ole & Charlies marina, they have a hoist launch just like Des Moines for $20 per round trip. i dont know the minimum boat size they will launch, but it is a full size sling so they may not want to launch smaller boats. also, they are only open 0800-1700 so you can't go out early or stay out late.