![](https://image.tmdb.org/t/p/w92/nz32W2cYLn4d0TfuulBunO2lHB6.jpg)
Two journalists traverse the Grand Canyon by foot, hoping this 750-mile walk will help them better
understand one of America's most revered landscapes and the threats poised to alter it forever.
Kevin Fedarko,
Peter McBride
Added on Disney 2021-03-01.