Underwater ice hockey or sub-aqua ice hockey is a minor extreme sport played upside-down underneath frozen pools or ponds. Participants wear drysuits, and use the underside of the frozen surface as the playing area for a floating puck.
It is not to be confused with underwater hockey, in which the floor of a swimming pool and a sinking puck are used.
The first underwater ice hockey world cup was held at Weissensee, Austria in February 2007. Finland finished first, followed by Austria and Slovakia. The other playing nations were Czech Republic, Germany, the Netherlands, Poland and Slovenia.
