Probably the most physically demanding thing I've ever done in my life.. 17 miles round trip, about 5,000ft vertical climb with the highest altitude at almost 9,000ft.. Not to mention there are several places where one wrong step means death.. 
Glad I did it for the sake of having done it, but I'll die happy if I never do it again..
That sounds like a challenge. I am in the works of heading back to the Grand Cayon with my son. I took him there last summer and test him out on the trial. We only went to the 3 mile point on the Bright Angle Trail with 110 degree temp. I want to go as far as the Indian Garden but do to the temperature and his first time, i did not want to push him. He really loved it and want to go all the way to the bottom. That is the next trip and then do the rim to rim. The rim to rim is a 19 mile hike from the south rim to the north rim that would take 5 days. Here are the pic from the first rip.
That is him slowly passing Desert big horn
The wooded area down there is the Indian Garden.
6 in the morning all you hear is nature and the breeze. Felt like i was the only one there.
My son and I on the South Rim. On our right is where the trail is for the north rim.
We just got started around 8 and already reaching 80 degree.
