Mostly at your own pace boulder hopping / choose your own adventure (over or around).
No more than 5 miles, probably closer to 3.
Past trips:
http://www.higherground4x4.com/forums/showthread.php?t=2394
http://www.higherground4x4.com/forums/showthread.php?t=1944
Probably won't be water flowing but you never know.
No worries if you can't make it. Silversides and I will be there no matter what. Just thought I'd extend the invitation.