Originally Posted by doublet
I paddled it once at 55 or 60K. We took the jet boat to brown betty and and paddled out the same day (the lake was low.) You probably want to take a look at the big drops but it's all class four. I'd be nervous in there on a raft (but I'm not a rafter.) If you're accustomed to kayaking larger volume rivers it's pretty casual and really cool to travel through the canyon that fast.
One of the rangers down there told us that they used a GPS on the flat water between the rapids and without rowing the flat water was moving 19 miles per hour. I wish I had taken better notes but I think it only took us a few hours to go from Brown Betty to the bottom of the big drops. The water is cruising.
Definitely a cool experience.
I should probably clarify my earlier post. If you're a class V boater with big water experience the run will be low stress and a fun day of wave trains and hole dodging. If you're a class IV boater with a very solid roll and big water experience it will be spicy but fun.
If you have only run tiny creeks (regardless of their difficulty) you will be terrified. If you swim you will have a religious experience. If you don't have 100% confidence in your roll in big, powerful river features don't put on. High water cat would not be a good trip for your first class IV or your intro to big water.