Three more dunes to delve into...

1 SAHARA, MOROCCO

The world’s largest hot desert covers around 9 million sq km. It’s not all sand, though – there are also gravel plains, lunar rockscapes and mountains. You’ll find a wealth of accessible dunes, Berber camps and camel rides in south-east Morocco at Erg Chebbi and Erg Chegaga.

2 WHITE SANDS NATIONAL MONUMENT, USA

So dazzlingly pale it looks like snow (sleds frequently speed down its slopes), this rolling carpet of gypsum sand in New Mexico spans over 700 sq km and is the largest of its kind in the world. Hike to one of its backcountry campsites to bed down beneath the stars.

3 SKELETON COAST, NAMIBIA

Livid orange, over 80m tall and utterly spectacular, Dune 45 in the Namib Desert is a contender for the ultimate travel snap. For a wilder feel, head to the Skeleton Coast, where the dunes roll down to the Atlantic, studded with the hulks of ill-fated vessels.