The Pacific Island Countries face severe climate-related challenges affecting water access and sanitation, endangering public health and hindering development. The PacFresH2O project aims to enhance rural communities' water resilience in Papua New Guinea and Solomon Islands by improving water infrastructure, implementing nature-based solutions and water resource management, integrating climate resilient WASH into national plans, and collaborating with local stakeholders to maximize socio-economic benefits and mitigate climate change impacts.