Photographing Moqui marbles are of interest to some, you need to go out to spencer flats to see them, do a web search.
In the fall when the Cottonwoods are changing the hike to Phipps Arch had many good ops. In the warmer months the following canyons: Peekaboo, Spooky, Zebra, and Neon. Take minimal gear if going into any of the first three which are narrow slots and may have water/midget rattlesnakes in them. None of these measure up to Antelope canyon though. I have also seen commercial photographs of Grosvenor(sp?) arch and the pipes at Kodachrome State Park.