Step 1. Start 'em early. I mean really early. Similar to how you play classical music to the unborn, except here they get accustomed to the roar of the engine and the tower speakers. Make sure Mommy2be boards/tubes up to 7 months, and then drives the boat every weekend up until she goes into labor - thanks Honey!
Step 2. Once born, get them out on the boat ASAP. Here's our son at nine days. Slept thru it all. Go figure. See Honey, all that boating during your PG days paid off.
Step 3. Here we are at 6 weeks. Chunky Monkey just can't get enough. Goes big early and ends up passing out for the rest of the session. Hmm, sounds like Dad a few years back.
Step 4. At 4 months Chunky throws a frothy 'cos "...wearing a vest is for Wusses". Also decides Mommy needs driving tips, and to show her how to pull Dad into that tight triple-up he's always calling for. See Mom, grab the wheel here, and spin it..
Have fun