The mouth of Peek-A-Boo Canyon, left. Spooky Canyon is seen on the right. Both of the slot cany …

The mouth of Peek-A-Boo Canyon, left. Spooky Canyon is seen on the right. Both of the slot cany ...

The mouth of Peek-A-Boo Canyon, left. Spooky Canyon is seen on the right. Both of the slot canyons in Utah can be easily visited in half a day. (Deborah Wall)