The fourth meeting of our project called NATMed supported by the H2020-Prima program was held in Bozcaada, Çanakkale, hosted by Türkiye’s partners . Within the scope of the meeting, studies carried out with 12 different institutions for more rational, correct and efficient use of water with nature-based solutions in regions at risk due to drought due to climate change in 5 different countries in the Mediterranean Basin, Türkiye, Spain, Italy, Algeria and Greece were examined. In addition to online groundwater monitoring, groundwater recharge and plant cultivation using wastewater, effective and innovative agricultural practices were demonstrated, especially in Bozcaada.