This is what Richard Goodey writes about the world highest canyon swing:
Find yourself peering over the edge, 524 feet above the raging waters of the Bhote Kosi, perched unnervingly high on a steel suspension bridge. This is the world’s highest canyon swing and it’s found a mere three hours from Kathmandu.
Experience what feels like infinity, a free fall of six to seven seconds as you swing like Tarzan through the jungle. There is nothing quite like the moments before you step off the edge!