The trail you see at the bottom left of the photo is the Bright Angel Trail. For those who likes hiking, this is one trail that you can take from the south rim of the Grand Canyon to the Colorado river at the bottom.
The view is just amazing! It looks like a really pretty painting with a really long drop to the bottom if you don't look where you're going! The slice of brown water is the Colorado River. The white foamy thing in the brown water is actually a rapid!