VIDEO: Dean Potter completes solo slackline walk across China's Enshi Grand Canyon - Video

40-year-old American free-climber and all-round daredevil Dean Potter felt success as he completed a 40 metre solo slackline walk on Sunday. Walking across the Enshi Grand Canyon in China's Hubei Province, Potter crossed the canyon at an altitude of 1800 metres. Slacklines are not pulled tight like conventional tightropes, making the rope prone to bouncing as the slackliner makes their cross. Watch the video for an idea of the tension as Potter attempts his crossing, together with the relief as he completes.