Sani Pass, a world heritage site, is a mountain pass located on the border between South Africa and Lesotho 2,874 metres above sea level.
The route up Sani Pass starts at 1,544 metres, and climbs 1,332 vertical metres to an altitude of 2,874 metres. The road is a steep gravel road with gradients up to 1:3, which can be difficult to drive in bad weather and may be covered with snow and ice in winter. By South African law only 4x4 vehicles are allowed on the road.
The pass lies between the border controls of both countries and is approximately 9 km in length. Caution must be exercised and motorists must be alert while navigating the pass as it has claimed many lives. Occasionally the remains of vehicles that did not succeed in navigating the pass's steep gradients and poor traction surfaces can be seen.