Completely impractical - but I want one...

[Legmaster]

http://www.flixxy.com/water-sport-jet-pack.htm?a=1

Good effort sir

[Shrimper]

that looks great! whats the thing being tugged behind it though??

[Legmaster]

I'm guessing it's three quarters of a jet ski helping to pump the water up the tube.

[scubadude]

OMG!

Fantastic, useless, wonderful and noisy but would love to try it!

[S2 Giles]

now thats a clever man with too much time on his hands