The difference in elevation between the lowest and highest point is over 350 m (according to my watch). With a constant climb over 6 km from the first 500 m.
|Kloof Nek Classic 21km Elevation Profile|
One of the annoyance factors is that people litter unnecessarily on the race. Runners deliberately throw water sachets in the bush in places that make clean up difficult or impossible. Road traffic has been quite well managed in the past. There are parts where the sound of runner’s feet is the only thing you will hear due to absence of cars and effort required to talk.