Crack canyon is an easily accessible slot in the San Rafael Swell, south of I-70, near Hanksville and the Goblin State Park (Utah). The trail does have chokestones which require some athletic mobility. They aren't overly difficult, have climbing tools in place, relatively well travelled, and with known safe exits downstream. As such this is great for an introductory challenge to this neat little niche outdoor sport.
The road is a bit rough, for a few miles, but most of the connecting roads between Hanksville and I-70 are quite good. It makes a good stopover on a scenic route - should you be so fortunate to fit it in. As always I'll leave the details to others.
The canyon starts out relatively wide, narrowing as you progress.
This is the first of three chokestones. I didn't go past this point as time was limited, and, I'm also a bigger guy, a risk and mobility limiting factor. I did speak with a father son pair who had been through all three. This is not a trip without risk, and if you don't feel comfortable evaluating those risks don't proceed.
