I've hiked around the bottom flanks of Zion's South Ariel Peak many times, always getting spooked by the very steep slope. Previously I've only been a little higher than 'graffiti rock' - where selfish people have carved their initials into the sandstone.
On my last trip to Zion, I decided to hike to the summit from the back side. This route was surprisingly easy. I'd say it is class 2 with two very short sections of class 3.
I just hiked around to the saddle between South Ariel and Aires Butte. The slot canyon had people inside, so that was fun to watch and listen to them for a bit.
When I got up near the saddle, I saw a couple people climbing Aires Butte.
I turned left and headed up to the saddle, then straight up over the ridges to the final summit.
Here's a shot looking down toward the road and the slickrock apron where the tourists explore. I tried hard to not dislodge any rocks, since that might ruin the day of somebody hundreds of feet below.
This shot looks south toward Nippletop.