This 0.6 mile one-way trail (1.2 out-and-back) leads down to the Rock House cave at Hocking Hills State Park, Ohio. The trail also runs alongside the rock house cliffs before heading back up to the parking lot. You'll find waterfalls trickling down on both sides of the rock house cave formation.
In the middle of the trail is the rock house - a cave that's about 15-20 feet deep and about 200 feet long. The cave has large openings facing outward from the cliff side so you can enter it in various points along this trail.
It's definitely a unique trail and a must-visit at Hocking Hills State Park if you're in the area.
Pets are not allowed on this trail.