We all know what it feels like to lose our balance. Most of us mere mortals fall flat on our faces when it happens. But when you're high-lining between two mountains, or mountain biking with a sheer drop at either side, taking a fall isn't really an option.
Watch the video to see some spectacular shows of balance – and some near misses – and be prepare to be amazed by Nathan Paulin's world record 400m highline, an insane bike slackline by Kenny Belaey, technical free-running and Julien Dupont reinventing the rollercoaster.
Phew, that's enough to make anyone dizzy.