I consider this the best day hike attraction in Big Bend Ranch State Park. It is short, but very scenic. The trail takes you into the mouth of the canyon as it winds it way back and forth deeper into the canyon.
There are some points where you have to climb down past some boulders or drop-offs to continue. The rock floor is slippery, especially since it is covered with loose dirt, so be sure to watch your footing.
Near the end of the trail, there is a fairly high drop-off (maybe 12 feet). Jumping down to continu will be a lot easier than climbing back up and out, so use your judgment so you don't get yourself stranded. If you have some rope and climbing shoes, it would be very helpful. Some climber has driven in a metal stake to tie off a rope to and there are some foot holds and places to grab/stand.
I highly recommend this hike!