The Waikato River crams into a narrow chasm resulting in the Huka Falls.
Here's the river just upstream of the falls. [960x1280]
And Huka Falls, itself. It's hard to tell in the picture, but the falls plunge 11 meters (36 feet). [1280x960]
A pair of kayakers attempting to shoot the falls. You can also see them in the first picture (if you look carefully). [960x1280]
And the second kayaker. I'm happy to report that both of them survived the falls. [960x1280]