Arrowhead Park and Tower Bay both have courtesy docks as does the one north of The Colony (I think it's called Stewart Park or Hidden Cove), also the ramp in Little Elm at the 720 bridge. Come to think of it, all of the ramps I know of on Lewisville have courtesy docks. Having said that, my advice would be to be extremely careful out there on the weekends, lots of pleasure boat traffic and some BIG boats too. Also, a good dose of patience at the ramps will be necessary at times. Haven't fshed there lately so can't offer any current info, sorry.