Sand dunes in the <a href="https://en.wikipedia.org/wiki/Namib-Naukluft_National_Park" class="extiw" title="en:Namib-Naukluft National Park">Namib-Naukluft National Park</a>, Namibia.
<a href="//commons.wikimedia.org/wiki/User:Yathin_sk" title="User:Yathin sk">Yathin S Krishnappa</a>
CC BY-SA 3.0
<span class="int-own-work" lang="en">Own work</span>