While all the other stuff in Zion was great, this was the place I most wanted to get to and, most definitely, will go back to. This is called "The Subway" and it is a hell of a hike to get there. 4.5 miles in 3 hours, sometimes having to do some serious searching for a trail. You really work to get here and back, but it is worth it. The light coming in from the side is reflecting off a huge wall of red sandstone. It is incredible to see this place and, while there are many, many photos of this place that are better than mine, it was fun to get there and shoot it.