Wifey B: If the child is bored, it's because the adults are boring.
We have two five year olds who sometimes boat with us and our niece, one of the five year olds, has cruised long distances, long days. Yet, during daytime hours, I can't recall her ever wanting to watch tv. She'd far rather sit at the helm. She loves the magic of radar and AIS and chart plotting, even that of sonar and night vision. She keeps her own chart on which she updates where we are or have gone and she doesn't grasp the math of distances but she does on a chart grasp we've been this far and we're going this far. She loves to look out on the water too. However, she requires at least one adult at all times. It might be her mom or grandmother or me, her wonderful aunt.
It might be one of our friends she calls her cousins. Stephanie, a captain, has already given her ideas about when she's old like Steph (now 31), she can be a captain if she wants and she can drive the boat. I can tell you already, Aurora will learn. It's easy for her mom with us as others take turns, but I gain even more respect for parents each time, realizing what a full time, all encompassing job parenting is. We've kept her at home a couple of nights and I was tired by the time she left and I love her so much.
Now night is different and we'll all watch television. I am not going to miss the NBA playoffs or the Super Bowl or the final game of the World Series. I watch a lot of sports. Then I watch escape television. Most of what we watch we can all still talk during. Just don't cut me off from the world I know and love.
As to how, we have satellite. Now, would satellite internet and streaming work? Yeah but would cost more than Sat TV. Streaming is great but WIFI at marinas not dependable. Pau Hana's solution of OTR mobile and streaming or any mobile that will not throttle you is a great solution if you're close enough to shore. In fact, we've tested such a solution today since we sell mobile and although haven't been watching, the tv has been great.
TV and internet aren't luxuries to us, but necessities to the quality of life we desire on board. For those recommending reading, my five year old niece loves to read when we sit down with her and read with her. On her own, she also knows how to access her kindle and will do so. She will "reread" books we've read her. We did get her a book recently you might find interesting, "How to Babysit a Grandma."