National Integrated Water Resource Management (IWRM) diagnostic report of the sustainable IWRM in Pacific Island Countries (PICs) focusing on the study of Vanuatu. The publication provides an overview of the area of study, and what is IWRM for Vanuatu, in terms of water resources management, island vulnerability, awareness, technology, institutional arrangements, finance and linkages to other areas, including other activities related to IWRM, as well as stakeholder engagement, capacity-development needs and integrated approaches towards barrier removals.