I've tried everything from dramamine (two days in a row, so very similar to the night before), to essential oils, magnets, etc.  I even get queasy in a small craft if the water is choppy enough (found that out in the Chesapeake Bay 2 years ago in my kayak!). Dramamine helped, a little, but only so much that I wasn't still dry heaving in the evening after being back on dry land for hours.  Still plenty sick when I went to bed, though.  
 
I've been out on a few large boats (and by large, I mean bigger than a canoe...basically bass boats and motorboats) for less than 2 hours on very calm water close to shore and been okay, but there's little rhyme or reason to it and it doesn't take much at all in terms of bobbing to have an effect.
 
I guess I'm just hypersensitive to it is all.  Landlubber for sure.  Just mainly pointing out that regardless of how it's presented to them, some kids just won't be a fan of boating.

 Re: Cold's two posted pictures; I still love the one of the female, funny looks and she's attractive, very cute. Jim Carey, not funny to me. He was OK when he did In Living Color, weird "stretchy" faces. Never liked his movies either. Different strokes for... .
 Although Dramamine works for me, the major side effect [grogginess] makes it not so desirable, but better that than heaving out one's intestines. I don't know if I get motion sickness on a boat, but if I'm paying for a charter, I'm not taking the chance of finding out. There is the non-drowsy formula, but I've never tried it, mostly because of seeing the drowsy formula more often. Never had Bonine or the wrist bands.

Sea bands work well for me.

People will buy their kids or grandchildren  a $100 + pair of tennis shoes, but their going to worry about a small fee that isn't  mandatory. When my grandson was about 8 yrs old he would have been proud to wear his own license like his dad and pap!