I hiked the Upper Canyon trail on a warm, muggy day in May of 2009. It’s a nice area and an enjoyable hike, but by that time of year, it’s starting to get warm, so begin the hike early. The views from Haynes Ridge are great and Fern Cave is also interesting, so bring a camera with you. I saw quite a few lizards, but no other wildlife. The only other people I saw were a couple of mountain bikers shortly before I returned to the parking lot. My timing turned out to be pretty good, because the area was hit with a huge thunder storm an hour or less after I finished. By that time, I was ordering pizza and a cold drink in a small town about 40 miles (or so) west of the park. It was a good hike, but probably better in the cooler months when heat and storms aren’t a concern.