WaterMellon involves a multi-actor consortium of 20 partners from 11 countries, leveraging experience from past PRIMA, H2020, and Horizon Europe projects.The WaterMellon project aims to enhance Mediterranean dry farming resilience by integrating modern water-harvesting techniques with traditional practices. The project engages farming communities, stakeholders, and policymakers across six Mediterranean countries (Italy, Greece, Morocco, Algeria, Spain, and Turkey) to create regional living labs. It rehabilitates ancestral structures like khettaras and seguias, incorporating new water harvesting technologies. Water-efficient cropping systems for arid, semi-arid, and saline soils, along with drought-resistant crops, will be tested. The project also focuses on developing sustainable value chains based on the circular economy.