Okay, nothing more to say other than this was really, really, cool!! Did this in above normal temps in July with my wife and three girls aged 9, 15, and 20 in the late morning to early afternoon. It was pretty hot, but there is quite a bit of shade available with the canyon walls.
Fairly easy and short sand and slickrock trail from the trailhead down into Dry Fork Coyote Gulch. To the left is a narrows in the main canyon which was worth the short walk up into it.
Pretty much straight across the main gulch from where the trail enters is the entrance to Peek-a-Boo which we saved for later (didn't do the loop, just explored the bottom ends of the canyons).
Headed down canyon and explored the lower end of Spooky up to the first dry fall. Sandy bottom, easy walking, especially if you were thin. I'm 6'2", 215 lb, and at the first really narrow section had to get down on my knees to pass through. Many sections I was scraping my chest and back on the walls as I wound through the twists and turns of this canyon. Yeah, this one is really cool!
Peek-a-Boo was a little tricky to get into. The sandstone was covered in dried clay from the mudholes, so it was pretty slick. As for the canyon, you've seen the pictures. The arches and dry (mostly) pools are amazing. Some of the pools were deep enough that if one of my girls had jumped in alone, they would have had trouble getting out.
Great half day, well worth the drive.
Road: 40 to 50 mph gravel a good part of the way, but the road gets markedly worse after twenty-five mile gulch. A couple dicey spots for the family mini-van. The spur road to the trailhead is washed out in one of the ruts so you have to drive all the way to one side of the road. A little interesting, but passable.