In our continuing series of how to, and how not to, run rivers in the National Park System we bring you this selection from Canyonlands National Park. As you can probably surmise, the chocolaty Colorado River is best enjoyed from atop, not underneath, the raft.

This park-produced video depicts a raft run through a new feature on the Colorado, "Big Drop Two," a crashing wave/hole that has earned at least two names so far: the "mother-in-law" and "the claw." Located halfway down Big Drop Two, this feature surprised a lot of folks, including this row boat.

The photo that accompanies this video is of Big Drop Two. It was snapped by Ranger Neal Herbert.