What to expect
The Sani Pass links the South African side of the Drakensberg with the Lesotho highlands. The pass road is unsurfaced, steep and switchbacked — on the South African side it is 4x4-only, which is why most travellers book a guided 4x4 tour from Underberg. At the top, at roughly 2,870 metres, sits the Lesotho border post.
Best time
The dry winter months give the clearest views but can bring snow and ice at the summit. After heavy rain the route is sometimes closed — check the day before.
Crossing the border: the key practical point
At the top you cross a genuine international border. Bring your passport; without it you will not get through the border post.
For connectivity this is decisive: an eSIM valid only for South Africa does not work in Lesotho. As soon as your phone registers on the Lesotho network up there, you are either offline or in an uncovered roaming situation, depending on your plan. If you need to be reachable at the summit, you need a plan that explicitly includes Lesotho — otherwise plan the day offline on purpose.
Practical notes
- Download the route and the area around Underberg as an offline map beforehand.
- On the South African approach there is signal in the towns, but not continuously through the mountain sections between them.
- Tell someone when you expect to be back — you cannot count on being able to call from the pass road.