Try rogers trough or the reavis trail, I've been in there a couple times when it's foggy and it's amazing, the trail follows the canyon but not down the wash. Sometimes it's up high and sometimes right through the creek. The fog settles into the creek so when you hike up out of it you get this great visual with the bottom of the canyon obscured and the rest of the mountains set out by the clouds. Amazing!
Cogito ergo ambulo cum sacculo