Apologies to every water park in the world, but this blows every single one out of the water. Terrible pun---but seriously---JUST LOOK AT THIS. The daredevils basically mounted themselves on body boards and hit the icy rivers without a worry in the world. They dubbed the sport "hydrospeeding" and it took place on the Altesch glacier in Switzerland, which is the largest in Europe. Too insane.
Photos by David Carlier via GMA.