Canyons are inherently risky. Flash floods occur without notice on sunny days. Technical skills & surrounding topography knowledge required yet does not eliminate risk.
steep approach, easy exit
A short scenic canyon with waterfall rappels, some pretty narrows, and lightly flowing water. Dues are paid up-front in the form of a steep approach, with an easy exit.
Be smart! Although this is a relatively frequently-visited canyon, always be prepared with enough gear to replace webbing and rapides in case they are worn or missing. At minimum, you will need: helmet, harness, rappelling device and biner, and 2x105 ft ropes. Bolts are present at some raps here while others use natural anchors (in this case, trees). As always, carry extra rope.
From the parking area, follow the trail along Parowan Creek and the road. Shortly, look to your right and cross a footbridge taking you over the creek. This is where you leave Parowan Creek and start hiking ESE along Benson Creek. At the next trail junction, take the right fork, which seems less traveled.
You now have a choice to either head straight up toward the scree slopes directly abutting the canyon itself, or stay on the trail. The trail is more round-about, but much easier, as it avoids the loose scree and takes a more mellow approach to the slope. Whichever you decide, you will eventually find a well-defined use trail running just off the top of the ridge. Follow this trail NE along the ridge and down into Benson Creek Canyon.
Now, enjoy the canyon. 4 rappels, all in mildly-flowing waterfalls. Short and really beautiful.
WARNING! Hiking and outdoor related sports can be dangerous. Be responsible and prepare for the trip. Study the area you are entering and plan accordingly. Dress for the current and unexpected weather changes. Take plenty of water. Never go alone. Make an itinerary with your plan(s), route(s), destination(s) and expected return time. Give your itinerary to trusted family and/or friends.