Jump into the start position of the pool and take a wild ride up and down just like on a roller coaster as strategically placed, aimed and powered water jets at the bottom of the pool propell you around.

I could see this in Japan where they put pretty big budgets into those massive, crowded public pools that I'd never set foot in.

Unless maybe they had one of these.
-- doctorremulac3, Mar 16 2017

I think a "Pool Roller Coaster" where, in order to pot a ball, you had to send it down a labyrinthine pinball-esque roller coaster would be a better idea.
-- hippo, Mar 16 2017



random, halfbakery