Stop everything you're doing and sign up for this tour. Seriously. This was the best excursion I did in the Zion area and, if I'm being a truly honest reviewer, it was pretty much the best tour I've done in the US so far. (And no, I wasn't paid to say that.) East Zion Adventures was highly organized and energetic. The staff was professional and fun, the gear was clean and safe, and the slot canyons were absolutely epic. Our guide, Spencer, was incredibly knowledgeable about rappelling and took extra care to explain the ins and outs to those of us who were much less experienced, or who were doing it for the very first time. You don't need any prior rappelling to have fun here... you just need that adventurous spirit! From the ATV tour, to the short hike to the top of the canyons, to the gallivanting, and (of course) to those once in a lifetime photo ops... you will thank yourself for committing to this outing.