Peek-a-Boo slot canyon and Spooky Slot canyon are a great pair of slots that can be experienced in a 3.5 mile loop trail. Located in Utah in the Grand Staircase-Escalante National Monument along the Hole in the Rock road, each is impressive in its own right, and I recommend you see both. Peek-a-Boo slot has several small arches that are its claim to fame, while Spooky Slot canyon is famous for how narrow and tall are its winding passages.
This trail is not trivial but can be done by anyone in decent physical shape who can do a bit of climbing and is not afraid of heights or is too large. Read all the details about in my articles about Peek-a-Boo slot canyon and Spooky slot canyon.
Below are some hi-resolution images taken from our hike through these nice slots. They are in order as you will encounter them if you do the recommended loop going up stream through Peek-a-Boo slot canyon and downstream through Spooky Slot canyon.
To read an article detailing all the slot canyons I have visited, go here.