This popular trail is on the north side of Logan Canyon and leads to a delicate triple arch and natural cave in a limestone outcropping.
Also known as the Witch's Castle, this interesting formation provides a clear view of what's called China Wall. Interpretive kiosks at the trailhead provide information about the trail, Wind Cave, bats found around the cave and rare plants in the canyon.
The hike starts about 5.3 miles up Logan Canyon National Scenic Byway, near the Guinavah-Malibu Campground. The trailhead is on the left side of the road as you are driving up-canyon. From there you hike up the ridge to the northwest, into the forest.
The cavern is about 1,000 feet above the highway and so the trail is fairly steep. It is well-marked and easy to follow.
Just return the way you came up.