We did the Crockett Falls/Crockett Gardens portion of this hike. It was very secluded. If you make it to the falls, make sure you go past the sign that points to who knows where. The falls is a little farther up the trail. I went off in the direction of the sign, but there was nothing but stickers and an overgrown path.
Also, make sure that you do not stop until you get to the falls. There is a wall on the trail that looks a little like it is the end, but the trail keeps going on the other side.
A lot of the trail was shady, but it was hot in the unshaded portions. Take some water.