The most popular trail in Hocking Hills is the Old Man's Cave Gorge Trail. This trail is 1.5 miles long and takes you through some of the most scenic areas in the park. The trailhead is located at the visitor center and the trail ends at Ash Cave. Along the way, you'll see a variety of plant life, including ferns, mosses, and wildflowers. You may also see some wildlife, such as squirrels, chipmunks, and birds.