Or bivouacs, as they are referred to locally, range in appearance. Out trekking in smaller groups provision is often modern light-weight tents where you will need sleeping bags but large groups or desert stays tend to be in more traditional caïadal tents where sleeping bags are not always necessary (running water is not guaranteed & European toilets are not readily available in remote locations). Fixed desert camps have added facilities offering a little more comfort – beds, bedding and shared toilet facilities.