Center Console Boats And More

Do you have any tips and/or suggestions for taking a 6 month old boating?

In a couple weeks we're planning on taking our 6 month old out on a pontoon for 1/2 a day.

Has anyone else taken a baby boating? How did it go? I'm curious as to what we should take with us to occupy him. Do you think we should take something (I'm not sure what -- a walker??) for him to sit and play in, or just a blanket so he can play on the deck? We have a life jacket, sunscreen, and a hat.

He's not quite crawling or pulling up yet -- he's usually very content sitting on the floor and playing.