Patterns in sand dunes in Erg Chebbi sand sea, Sahara Desert, near Merzouga, Morocco, North Africa, Africa

africa arid landscapes backgrounds close up close ups color image contemporary day desert deserts dunes erg chebbi generic location geology horizontal landscape landscapes lines merzouga morocco natural phenomena natural world nature nobody north africa outdoors patterns photography physical geography rippled ripples sahara sand sand seas sandy scenics surface processes topography travel travel destinations african color colour daytime moroccan northern africa outside