the traditional know-how in processing woolen textiles completely fades away. Geography Khniss is a coastal city which features the beginning of an amazing marine depression of shallow seabed that stretches till "Cap Dimass" in Bekalta, ancient Thapsus. From Khniss to Bekalta we can observe two distinct levels in the sea. The first one is a confined lagoon with no significant marine waves or currents and called by locals "Dead Sea"; the second has moderate currents and waves, and is usually referred to as the "Live Sea". In some parts of the shallow sea beds, remains of Roman mosaics can be contemplated near the sewage treatment plant of Lamta-Sayyada. Some elders have referred to the region as "Al Maklouba" in a reference to an old myth saying the region had known a major earthquake that critically changed the landscape in the lagoon. The lagoon of Khniss used to have a particularly rich marine biodiversity that until a recent past sustained pretty well the livelihood of local fishermen families. A traditional ecological fishing method known as "Demmassa" was widely employed in the region and used to be productive enough for all. However, in the last few decades, the lagoon witnessed a combination of serious environmental problems that are endangering its unique ecological equilibrium. Pollution, poor planning and the complete absence of sustainable preservation strategies are the main reasons of this environmental disaster. For instance, poor planning can be witnessed in the hastily built system that deviates the rain waters to protect the airport of Skanes-Monastir and the neighboring presidential summer palace. The construction of a sand barrier (Drina) in front of the drainage course of rain waters worsened the problems. The pollution due to urban and industrial waste waters further strangled the environment and is most probably the main reason for the depletion of the marine biodiversity of the lagoon. Ambitious and well though restoration plans are urgently needed so that the lagoon could recover its original beauty and provide a viable and welcoming habitat for marine species that once prospered in the lagoon. References External links Populated places in Monastir Governorate Communes of Tunisia