Off-road mobility plays a key role in several development activities such as agriculture, construction,land reclamation, mining and petroleum. Despite the fact that national development in Egypt is directed towards the exploitation of the desert , no serious attention has been given to promote research work in problems of land mobility in desert areas. This paper seeks to initiate interest in research and development in off-road mobility especially on sand. It outlines some of the concepts of land mobility in nature and describes some man-made vehicles utilizing the walking concept to negotiate soft loose terrain.