I am so glad I found this on a whim, it was the highlight of my trip to Tucson! Tucson is a great city and we did all the go-to tourist stuff (desert museum, Sabino canyon) but this is the day I will remember. We had never done canyoneering before, but love to hike, and this was the perfect introduction to it. GORGEOUS scenery here in the desert, and this gives you a chance to really experience it. Our guide was great- we were sad to leave him at the end of the day. If you're hesitant, don't be! This is a hidden gem.