Wall of Sand

Here we are in the Rub' al Khali or The Empty Quarter, this is story book fantasy stuff. We are in one of the largest sand deserts in the world, maybe even the largest, it certainly looks like it from where we are.

Pictured here is the first medium-small sized dune that we encountered. The biggest one in the immediate area is the Moreeb Dune which is more than 300 metres high and has an angle of 50 degrees on the front face,.... it looks like a really really huge wall of sand, I'm guessing it looks that way because it IS a really, really huge wall of sand.
If using Google Earth, type in Moreeb Dunes UAE,....that's were we were!