We decided we wanted to make a hike down the Grand Canyon. To the river and back. We would take the South Kaibab Trail down and the Bright Angel trail back up. Since there was no place on the campground at the river, we had to go halfway back up to Indian Garden campground. This turned out to be one of the heaviest hikes we ever did.
Mules were used to get anything in or out of the grand canyon (including tourists).