On Pentecost Island, one of the 83 islands that make up Vanuatu, "land divers" tie vines around their ankles before leaping from a 10-metre platform.
The traditional practice goes back centuries, and AJ Hackett's website credits it as the origin of bungy jumping.
The Vanuatu parliament in Port Vila is now considering a bill to protect their people's traditional knowledge and culture, and help them benefit from commercial uses of it - and specifically names bungy jumping.
