But if you're not making noise, how will everyone else know how much fun you're having?

Somehow, "Hold my beer and watch this shit"... silence.... doesn't work.

Yeah, I take back my desire to run it on the river. I watched the video without sound. It looks like fun, but there would be a lot of unhappy people, and would scare away the critters.

There's a hilljack lake near here, though.

Of course, I have to admit it looks like fun. As long as you are motorizing a kayak, why not add a lot more horsepower? To the point of needing a crash helmet.

Shaun Baker's Jet Kayak

very annoying promotional video, really, but the boat looks like fun. I think it's got a good chance of taking off, but I agree that it looks noisy.