Erg Chebbi offer camel trips into the dunes, taking tourists on overnight trips to permanent campsites several kilometres into the erg, and out of sight of the hotels. Erg Chebbi's proximity to the tourist center has led to the erg sometimes being referred to as "dunes of Merzouga." During the warmest part of the year, Moroccans come to Erg Chebbi to be buried neck-deep in the hot sand for a few minutes at a time. This is considered to be a treatment for rheumatism. Erg Chebbi Erg Chebbi () is one of Morocco's several ergs – large seas of dunes formed by
Erg of Bilma been stabilized by the growth of vegetation, allowing human cultivation of crops like millet and sorghum on the slopes. The ancient Bornu Empire to Fezzan caravan routes had to cross the dunes of the erg south of Bilma as the last major obstacle before reaching the sahel. While that traffic largely ceased after 1820, trade though the erg of Bilma continues from the Lake Chad region and the Termit Massif on a small scale. Erg of Bilma The Erg of Bilma is a dune sea (Arabic: "erg") in the Ténéré desert region of the south central Sahara Desert. The Erg