Merzouga has an ever-expanding strip of hotels and guesthouses, with options ranging from simple to sublime. The village’s main draw, though, is the easy access it offers to Erg Chebbi, where the sand soars as high as 815 feet. A sunrise trip to the dunes has become a classic Moroccan adventure. A series of café-restaurant-hotels overlooks Erg Chebbi, and most run camel excursions to the top as well as to oases where
you can spend the night in permanent bivouacs. Some tour operators now offer exclusive and luxurious camps tucked in dunes away from the crowds—picture tents kitted out with woven carpets, antiques, lanterns, four-poster beds, and en suite washing facilities. You can also expect chilled champagne and fine dining by candlelight, but be prepared—paradise doesn’t come cheap! Between Erg Chebbi and the town, have a look at the underground aqueduct, Merzouga's main water supply. It's flowing (oozing) proof that sand dunes form as a result of moisture, which causes the sand to stick and agglomerate.