It’s too dangerous to attempt Mina Mina. The route is too treacherous – no roads, just open desert. Even the hardiest get stranded in deep sand, or their tyres are shredded by sharp acacia. There’s no water for hundreds of kilometres, and birds attack the plastic bottles, pecking holes in the side to steal the water. The heat is at the limit of what human beings can endure. To survive, you need shade, but the shade moves. Eight of the deadliest snakes on Earth also need shade.