The GECS 2023 will be held at the Jerba Island. Djerba island is a magical mosaic composed by desert, pretty coastal areas and rural fields with palm gardens, olives trees and small farms. It has some beatiful and touristical villages with cultural interest, as Midoun, the main touristical point in the island, Guellala Djerba, El Mey, or Houmt Souk, a lovely village plenty of white houses, mosques and souqs full of activity. The island has a long history related to commerce, since phoenicies until recent times. Carthage and Rome have left archaeological remains, Christians are implanted early, before it was invaded by the Vandals and the Byzantines and Arabs. It became a haven for pirates in the fifteenth century, after centuries of struggle against the Spanish invaders or Norman. The archaeological heritage of the island has a great value: Harb Bosson mausoleum, Meninx ancient city, the turkish fort of Mustapha Ghazi…There are a lot of churches, mosques and synagogues in the island, and this rich cultural heritage does not hide the beauty and quality of the natural landscapes.