Dune flying consists of flying coastal dunes in moderate winds. The smooth wind coming off the ocean deflects off the dunes provides plenty of lift to goof around in. Pilots fly and float very low to the ground. Dunes as short as a couple of feet can be soared in strong enough wind. Pilots can even come to a complete stop, and hover in the wind and fly backwards. All sorts of fun tricks can be performed in these conditions and goofing around like this is known as "Dune Gooning" Usually, higher winds are required for dune flying in the 12mph to 25mph range.
Dune Gooning in Western Australia