If you are a solid class II boater, I mean it, the lower section of the lower canyon of the Kings River is a super trip.
The run is continuous class II from the put-in, to the road, and is mixed with sections of class II+.
A few of us discovered this put-in a few years back, while setting safety for rafting the big drop, Gotta give er, (which is on youtube) and this opened up a new run for those who cannot boat the harder stuff upstream.
Go up Permanante Road, a few miles, and down the long hill with a big deep mud puddle, at the bottom, with a trail forking to the left. Take the left fork and head towards the river. There are two forks you will take to the right, starting, after you walk about three fourths of a mile. You will wind through the woods and will eventually parallel the river. Continue until you see a couple of rocks, about a foot and a half across, then walk through the brush going slightly left,and you will see the crack in the canyon, and... your put-in.
I have done this section 6 times at flows from about 200- 800cfs, and flow makes a difference, between waves or rock dodging. Anything over 500 cfs is pretty splashy in the canyon, but short on eddies, for periods of time, in the section after the canyon, which poses problems with keeping larger groups together.
There is no other way out of the canyon but downstream, so once you are in, there is only one way out.
After the canyon ends there is a river wide strainer about two miles downstream, go right, (along the right bank), AS SOON AS YOU SEE IT, do not try and ferry over at the last minute, it is very rocky as you approach it. If you do this, it is a safe and easy portage.
I prepared my kids by running the redgate section, at lower flows,around 350 650 cfs, until they were bored, and this year, their second year, they ran it at high flows 1150cfs. With this said, although the redgate does have two bigger rapids, than any thing on the Kings fun run, many rapids on the Kings fun run are close to class III at good flows. The near class III whitewater, combined with its continuous nature, makes it harder mentally for beginning boaters.
We had an excellent time, and this should be a great trip for those who can shuttle their gear, or use packrafts.