I think I have almost an identical composition. The place does offer great possibilities but not when you have to rush through the place with hardly any space to stop and take the place in. I am glad I got to visit when I had the lower canyon virtually to myself with about 6 people in the group and got to spend over an hour and a half.
There is an issue with Uploading Photos (attachjments). I am not sure what the problem is, and I am looking into it. You can still try to Create your Threads and Upload your Photos, but it is hanging up during the Upload.