Hiked this on the Sunday of Labor Day weekend. Several cars at trailhead and saw others on trail. Lots of drunk, rowdy people at the cave spring so we didn't stay long there. Saw one copperhead sunning itself on the trial, but uneventful otherwise. Not very scenic, but a decent workout as we kept the pace a little under 20" miles and we finished a little under two hours. Almost entirely wooded/shaded. Gravely terrain made me glad I wore my Keen boots.
The trail is very well laid out. The descent to the cave on the river and back out is very easy because of the switchbacks. Take the time and do the loop,not just out and back. You will be rewarded with a pleasant walk. I discovered the biggest redbud tree I ever saw. It had to be 5' accross.
My friends and I visited this spring over the weekend and it was incredible! You can feel the chill in the air emanating from the water. I highly recommend this spot if you're also floating down the river because both can be done easily in one day. Enjoy!