Well, not really in Australia, but going by how the internet views Australia, this is how they should be playing, upside down, on the other side of the ice. In reality, this is a game of “ice” hockey played in full scuba gear on the underside of a frozen lake. Instead of goals, there are triangles cut into the ice that the players try to shoot the buoyant wooden puk into.
More surprisingly, there is a non-scuba version of this game that is apparently recognized as an official sport somewhere. In that version, players surface every 30s to get air, and the game ends as soon as someone gets the puck in the hole.
Here’s a great video of event, including underwater, upside hockey: