Hammamet is a Mediterranean coastal area located in the Cap-Bon region of Tunisia (Gouvernorate of Nabeul). The touristic development has stimulated the urbanization extension and has deeply changed the original agricultural character of the region leading to water conflicts between sectors (agriculture, touristic, urban). The local water resources cannot meet the local demand, and the region should rely on the water transferred from other areas of the country to fulfil water needs. The groundwater is overexploited and suffers in some places from salt-intrusion. Due to this situation, agriculture abandon in favor of urbanization is more and more observed. 4500ha could be submerged under the effects of climate change and the actual situation is likely to increase the vulnerability of the region and limits the possibility of sustainable agriculture and water management