Cast
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.
22 April 2018
20 November 2019
28 September 2019
27 October 2017
21 September 2018
20 July 2016
31 August 2017
30 May 2019
5 February 2019
21 May 2021
7 December 2018
5 April 2023
5 December 2006
3 July 2019
19 February 2016
22 October 2014
17 October 2006
6 December 2018
26 June 2012
18 December 2019
9 February 2019