What is typical - walking on salt extremely dangerous, because can fail and the guide that warned, but tourists do not care - go as they please.

During the winter rains Chott el Jerid is transformed into a salt enclosed water basin area of 5.7 thousand km ². In summer, when sediments are absent, and the temperature often reaches +50 ° C, the lake almost completely dry, often observed mirages.

In the 1970's built along the crest of the dam was constructed asphalt road.