No you don't. I used my HB 1199 and it showed all the lane markers. They are pretty easy to see by your eyes in daylight. Can't tell you about night time fishing, haven't done that but, only been there once.
You will have a ball.......good luck pardner!!
(BTW - don't know where your going to launch from but, Fin n' Feather is only $5 and they REALLY go out of their way to welcome TFF members. Say hi to Tom if you go there for me)