The Sani Pass is the only way to cross the Drakensberg escarpment on Lesotho's eastern border with South Africa (which, interestingly enough, totally surrounds it) - thus, it is an international border, and you require a passport to cross from one to other. If you want to be pedantic, the pass itself is technically 'no man's land', as the Lesotho border is at the top of the pass, and the South African border is at the bottom, with an intervening distance of 9km. This is reputed to be the longest distance between corresponding border posts on an international border in the world, although I am open to correction on this point.
Looking at the photo, I'm sure that you will agree that it would be a shame to drive all the way up this, only to be refused admission, so make sure that you have checked that you have a (valid) passport with you before you set out, lest you have to drive back to collect it!
It's worth noting that as Lesotho and South Africa are part of a common customs area, you are not required to present any ownership documentation for your vehicle.
Updated Jan 17, 2012
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The Sani Pass is the only way to cross the Drakensberg escarpment on Lesotho's eastern border with South Africa (which, interestingly enough, totally surrounds...
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Visit to Drakensberg Heritage Trails ( formerly Rainbow Adventures)- took a horse trail into the World Heritage Site. Saw fabulous views and even some Bushman cave paintings. Overnighted at their...
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