It is also found in similar artwork on Celtic crosses and slabs from the early Christian period. The fact that the triquetra rarely stood alone in medieval Celtic art has cast reasonable doubt on its use as a primary symbol of belief.
Namibia, the second-least densely populated country in the world is also one of the newest, and is home to some of the largest sand dunes, the darkest skies, the oldest cultures, the biggest conservation areas in Africa, the worldâs last rhinos and the most complex languages on the planet â to name but a few!
There are two different types of sand dunes which are the barchan dunes and seif dunes. These are differentiated as barchan dunes are produced by the action of wind predominately convex facing from one direction forming crescent-shaped dunes, whereas the seif dunes are long and narrow or can be a chain of dunes.