Ad-Dahna Desert passages which can be several kilometers long. Local Bedouin have always known these caves and some were used as water supplies. They were first systematically studied in the 1981, and later explored and reported by the Saudi Geological Survey. Ad-Dahna Desert The ad-Dahna Desert is the central division of the Arabian Desert. It is a corridor of sandy terrain forming a bow-like shape that connects an-Nafud desert in the north to Rub' al-Khali desert in the south. Its length is more than 1,000 km siding Twaik Mountains from the east and does not exceed 80 km in width. It is
Lost in the Desert shot in two versions, one in Afrikaans and the other in English. The Afrikaans version appeared in 1969 under the title "Dirkie", and the English version appeared in either 1969 or 1970 (possibly varying according to country) under the title "Dirkie Lost in the Desert", which was sometimes referred to and marketed as "Lost in the Desert", which is possibly an alternative official title for the English version. The film was released on DVD in 2005 (copyright 1999), and this disc contains both versions of the film, selectable from the front menu. The English version is about 70 minutes long,