Ok buckle up this will be long. I feel like the reviews and info on this hike aren’t quite adequate. Our watches were wildly off so while we were thinking we were going at a great pace we weren’t even close to being fast enough. We did the hike in one day. Got the first shuttle up and caught the 745 shuttle back down. So about 12 hrs. We are three very fit women in our 30s. We had one 10 min stop and a bunch of 3 min stops to grab snacks and what not. By the time we got to the really pretty stuff which is emerald springs, we were so stressed for time that we didn’t take any pics from them on. We had to keep our phones in our dry bags bc the water was over our heads 6-8 times. (I’m 5’2”) the water levels were just really high this year and it moves pretty quickly so there was a ton of back and forth on the river. I honestly don’t think you get anything more out of this hike than you would starting from the bottom up other than you’re by yourself. Also at the end of the hike is where all the deep water is and even during July and an excessive heat warning day, by the time I got to that point the sun wasn’t in the canyon anymore and I was pre hypothermic. Our satellite phone wouldn’t work in the canyon and I was dangerously scrambling over rocks as fast as I could to get to the shuttle. Plus once you get out of the river it’s about another mile on the sidewalk to get to the shuttle. For sure bring hiking poles. And for sure make sure you’re going as a fast hiker and not anyone that is a little slow. I just wish I had had more info on this hike before going into it. Won’t be doing it again. I’d rather just do the bottom up.