The guidebook I was using (Michael Kelsey, Hiking and Exploring Utah's San Rafael Swell) said that the usual route was to go up Ding Canyon and then down Dang Canyon, and that you must have 2 people and maybe a short rope to descend a 3-meter chokestone and dryfall in Dang Canyon. I was solo, so I figured I would go as far as I could safely, and back out from there.
From the trailhead it took about 20 minutes of easy walking in an open wash to reach the bottom junction of Ding and Dang Canyons.
Ding Canyon is indeed a very pretty canyon with several sets of narrows sections. There is one section with two larger plunge pools (both of them keepers!) that are bypassed on the right/east side. A couple of the obstacles were challenging enough that I took off my pack and set it up above the chokestone; none required any roping of packs, but I was glad to have some basic climbing skills.
After a little over an hour I reached the top of Ding Canyon, and it took 20 minutes to follow a well-defined trail over to the top of Dang Canyon.
The first obstacle going down Dang Canyon is an 8-foot dryfall; there was a bolt and anchor in the chockstone. This seemed unnecessary, as it was easy to bypass this on the right (west) side.