The Organ Pipes is the name given to the rock formation consisting of hundreds of tall angular columns of dolorite. This formation is thought to have formed about 120 millions years ago when the ancient continent of Gondwanaland was breaking up into todays Africa and South America (more info here).
Roads in Namibia are very well maintained and there is hardly any traffic on them:

Our car:

Surprisingly green Ugab River Valley:

Ever-changing landscape with more and more interesting rock formations:



Colorful Organ Pipes:




African Star-Chestnut Tree clinging to the rocks:
