Approach this run seriously, a guide is mandatory.
This section is considered one of the gnarlier, regularly run canyons in the area. Due both to access, remoteness and whitewater difficulty.
Once you make the leap into this run, the easiest and best way to exit the canyon is to paddle through it. Consider this a major NO SWIM zone.
Access to this run is dubious at best. Please be respectful and go with a local crew or someone who knows the way in well. Be quiet, quick, and enjoy the scenery.
Another important note, the characteristic of the whitewater changes drastically with water level, filling up more in certain places, and washing out more in others. Low yet still fun flows are 500-750cfs. In this range you're still gripped but the push isn't quite there. Teeth levels are from 750-900 and the big rapids are pretty scary and have kicked just about everyone's ass. From 900-1300cfs the water is big, pushy, and fast yet things are filling in and multiple lines in some rapids are open up. Plunger is real big by now with an eddie that will either make you smile or cry. Above 1300cfs and you're in the land of giants now.
Giving rapid descriptions makes no sense for this run. The entire 1st canyon is un-scoutable so a guide is mandatory. If you had trouble in the 1st canyon, there is an escape option river right in the calm above the start of the 2nd canyon. Here you can lick your wounds and hike back to your vehicle. You can scout all the big rapids in the second canyon so get out when you feel you need to.
Have fun, be safe, and give this run the respect it deserves.
One last note. Finding a guide is not easy, as the run is protected by locals due to the dangerous nature of the whitewater, and access issues. If you are really jonesing to get this one, meet the right locals, and make sure they know your kayaking is up to snuff.