I always wanted to do that.
It was a grand experience!
The first time was in July............ WAY too hot. (115 degrees at the bottom.......... and it's a long way from when you get to the bottom to Phantom Ranch!)
The second time we got smart and went in May. It was snowing at the top, but as we went down and it got warmer we saw the most amazing vegetation, including gorgeous cactus in bloom, wildlife and God's AMAZING creation in the colors of the rocks.
We camped in a tent by Bright Angel Creek and headed back up at about 4:00 in the morning to avoid the heat.
It's a Loooooooong way up!
Nothing in the world quite like it.
Of all the magnificent experiences in nature I've had, it was by far the best! I'd do it again in a heart beat!