At the stepping stones at the top of the falls, is the beginning of the National Pass track which works its way around the cliff face then down to the base of the first drop of the falls followed by the inevitable climb back up again. If you look closely towards the bottom of the photo you can see the railings for the track.
I took a great shot from there a couple of years ago but that is about as far as I have gone. I'd love to walk the National Pass but worry about my fitness to do a long steep walk.
Words to walk with:
From The Edge by Mark O'Connor
"The steel railing nudges
below your hip's fulcrumn;
you are alone on the edge.
with a million years of monkey ancestors,
watching a thistledown blow up
a hundred metres in a minutes
And your heart cries that you could fly."