Land diving (known in the local Sa language as Gol and in Bislama as Nanggol) is a ritual performed by the men of the southern part of Pentecost Island, Vanuatu. The precursor to bungee jumping, men jump off wooden towers around 20 to 30 meters (66 to 98 ft) high, with two tree vines wrapped around the ankles. Land diving is done without any safety equipment, except for the vines. The tradition has developed into a tourist attraction. According to the Guinness World Records, the g-force experienced by those at their lowest point in the dive is the greatest experienced in the non-industrialized world by humans.