Watch the moment when Sir David Attenborough and BBC filmmakers recounted the discovery of the highest waterfall on earth.

Even better, you can watch a further 1000 more memorable moments, for free, anytime, on your smartphone or tablet, via Attenborough's Story of Life app, which is now available to download via Google Play, or Apple's app store.

Find out more at

The Story of Life has been produced in collaboration with Sir David Attenborough, BBC Earth and ideas and innovation company AKQA.