Photo Gallery | Man walking across country for St. Jude Children's hospital
It's called operation cheer.
You can see some of the pictures here taken by Mario Landeros.
He is walking across the country to benefit Saint Jude.
He started in California and last week he was in Memphis.
He set to finish his trip by going toward the East Coast.
You can follow his trip and pledge suppport his operation Cheer facebook page here.