The Erg Chebbi dunes are located in the Sahara Desert. The awe-inspiring dunes are as high as 150 meters tall, and one certainly feels small in their shadows. Erg Chebbi special feature is its beautiful unique orange colored sand. Excursions to the dunes normally start from the village of Merzouga which is located on the edge of the erg. Camel trekking is the most popular option!