I just returned from my trip to Zion, Bryce, and Grand Canyon. The Narrows was not considered 'cause the water aspect of that hike made my wife nervous. Maybe at another time for me. Our first hike was Angels Landing. I was surprised to find that the final .7 mile of trail was at least 10 feet wide average. There were very few spots where you could look down the edge. We quickly made the summit focusing on the trail. However the exposure on another Zion hike was a factor. We combined Observation Point and Hidden Canyon. We felt we were "on the edge" many times. And at Grand Canyon constant attention was a must or your next step could be 5,000 ft. We went a short ways down South Kaibab Trail and also down Grandview Trail to Horseshoe mesa.