The sand dunes of Sossusvlei in Namibia were formed around 5 million years ago, and are some of the highest in the world. The rich orange and red colours of these dunes owe much to the iron content of the sand. Here, embedded in the foot of one of these giants, stands a tree next to a fallen comrade. That the tree has grown, survived, and even thrived in such a harsh environment is testament to its hardiness. You need to be tough to survive in these desert conditions. Certainly my camera gear put up a valiant fight against the sand, with tripod legs being particularly susceptible.