Tackling colossal waterfalls in Gabon, kayakers Adrian Mattern, Dane Jackson, Bren Orton and Kalob Grady's story of high-stakes adventure reveals the gritty reality behind the veneer of social media.
1954
1963
1996
2018
1972
1977
2017
2015
2021
2001
2020
1970
2016
2022
1946
1998
2012
1989