Lower West Fork Oak Creek
All the twists and turns in the canyon west of Alt 89 make it seem like there should be some deep pools. But I went five miles west, up the canyon and didn't find anything deep enough. 
Slide Rock
Slide Rock Campground 8 miles north of Sedona. So many people it regularly gets shut down because the fecal coliform bacteria gets too high. Yuk!
Grasshopper Point 
Oak Creek, just over ½ mile north of the Midgley Bridge on Alt 89 right next to the road. Major cliff diving spot. Crowds with beer coolers.