If you walk through the front door of the Polynesian, walk straight through the lobby, when you get to the glass doors turn left (before you go outside), go past the stairs and curve around to the right (pass Capt Cooks)... not far down on the left is where people start to line up - literally right across the hall from the Trader Sam's door.
This place is so much fun! No to do any spoilers, lots of fun stuff goes on when certain drinks are ordered. That said it is dark and there are loud noises / lighting things that happen. So if the toddler / baby would be startled by any of that, may want to reconsider. It is a fun, loud vibe more than it is a quiet, chill vibe.