The closing conference of the GIFLUID Project – Green Infrastructures to mitigate flood risks in Urban and sub-urban areas and to improve the quality of rainwater discharges (INTERREG V-A Italy-Malta 2014-2020 Program) was held on November 17, 2023, at the Main Hall of Di3A – Department of Agriculture, Food, and Environment at Via S. Sofia 100 Catania. The GIFLUID project, led by the Di3A of the University of Catania, involved partners such as the Energy Water Agency (Malta), the Regional Technical Department of the Sicilian Region, the Rabat Local Council (Malta), and the municipality of Aci Castello, aiming to promote sustainable solutions for the management of rainwater in urban and suburban areas through the use of green infrastructures and nature-based solutions