To get this shot, I had to put on my chest high waders and get into the stream. The water in the middle where I am standing was waist deep and moving so fast that I could barely hold my ground, but I really wanted to get the rapids in the shot.
I braced my tripod in the rocks about 2/3rds submerged in the water, then used my body to block the camera from flopping over in the water. Rain cover was on the camera due to rain and spray from the waterfall. Needless to say between trying to not get washed away and cleaning the lens between shots, it was a tricky shot to capture. =)
You can check out a shot of me in action at this spot here: