The world’s oldest and greatest ultra-marathon, the Comrades Marathon is a South African institution that is internationally-recognised for the body-sapping challenge it poses and the camaraderie it fosters among its thousands of participants from all over the world. Run between the capital of KwaZulu-Natal, Pietermaritzburg, and the coastal city of Durban, the race alternates annually between the up run from Durban and the down run from Pietermaritzburg.