I signed in at the register and there were notes there about cairns and purple dots. When I had been there before, cairns were next to nonexistent and there were no purple dots. Anyway, we followed the purple dots and it turned out to be my easiest hike up that canyon. I don't think we saw quite as much in the way of pools of water or small waterfalls, but somebody from Houston probably isn't as obsessive about pools of water as somebody that has lived in the desert during a drought for 10 years.
There were flowers all over the place. The water was flowing but was underground at least half of the time. The pools were wonderfully cool.
It was pretty easy following the purple dots up the canyon. I had more trouble on the way back and wandered from the trail several times. I think that if I had been going where I thought I should go instead of looking for purple dots, I might not have overshot the truck by several hundred feet. If you look closely at the pictures, I think I got the purple dots in a couple of them.