South African mining engineer Ledile Dikgale is set to take on an unprecedented endurance challenge: the World's Deepest Marathon.
On Saturday, Dikgale will be one of 60 runners from 17 countries to attempt a full 42.2km marathon inside Boliden's Garpenberg zinc mine in Sweden.
The race will see the athletes descend to a staggering depth of 1,120 metres below sea level, a depth at which a marathon has never been attempted before. The monumental event aims to break two world records and raise over R27.3 million for charity.