Super fun slots! It’s super important that you have a map downloaded - the trail juts straight downward into the wash pretty quickly after you start so watch for that. I’ve only ever done Spooky first and then Peek and I still recommend it that way personally. You’ll climb up through spooky - it wastes no time getting skinny and there’s a nasty little up climb at the end. We brought a pull cord for a group of newbies and it helped perfectly. Then a hike up a sandy hill and through a Mesa between the two slots (this is where a downloaded map will be super helpful - you do not want to get lost on that hot exposed Mesa rock). We descended down into Peek which is beautiful! Took some time at the end with the pretty arches and then on to the downward climb out of peek.
I’ve seen tons of people get themselves psyched out at the entrance of Peek when they attempt to go up it first which is why I like to do Spooky first.
Also two side notes:
1) bring plenty of water! We stashed a pack for our group near peek entrance and carried just what we needed for the slots. You’ll need water - don’t under estimate it!
2) We’ve taken 2 dogs (both were already active and avid hikers) through here twice - one 50 lb and one 14 lb doggo. I highly recommend Ruffwear’s webmaster harness for any bigger dog - it’s got a handle on the top and wraps nicely around the front and second half of their body so you can easily life them to and fro when needed (mostly through spooky). My little dog acts like both canyons are nothing :) bring stuff for their paws (mushers or shoes) as the sand and rock is rough on paws. It’s extra physical work to have a dog so you can help them, so if you don’t want the extra work, leave them home :)