I was looking at the description for the Yo-Yo stretch of the Green.  I agree with some of it.  The run is described as a good beginner run but the put-in and take out are not correct.  The put-in (Paradise Ledge) and take-out (Flaming Geyser) is for the Lower Gorge and not the Yo-Yo.  While the Lower Gorge is only Class III, I would hate for a couple of newbies to head out there looking for a good beginner run. 
Butch