"The game is 3D, how you play is only limited by your imagination"

Wow. I've just come across this and simply had to share. (Never heard of it before tonight).

 

Amazing. And looks like fun.

 

The puck is made of lead and is coated with plastic, it weighs about 1.5 kg.
The top players can flick the puck well over 3m and it comes off the bottom enough to go over another player.

 

Thorough explanation of it here: http://auf.com.au/sports/underwater-hockey/

 

https://www.youtube.com/watch?v=8Rj-SPPOd24