Foreword -- Part I Understanding the Movement of Groundwater in the Coastal Zone -- 1. Groundwater in the Coastal Zones of the Asia-Pacific Region - A threatened resource needing integrated management -- 2. Hydrogeology and hydrochemistry along two transects in mangrove tidal marsh at Dongzhaigang National Nature Reserve, Hainan, China -- 3. A Geochemical and Geophysical Assessment of Coastal Groundwater Discharge at select sites in Maui and O'ahu, Hawai'i.- Part II Methods in Coastal Groundwater Investigation and Assessment Tools -- 4. Use of geophysical and hydrochemical tools to investigate seawater intrusion in coastal alluvial aquifer, Andhra Pradesh, India -- 5. Geophysical Viewpoints for Groundwater Resource Development and Management in Coastal Tracts -- 6. Characterisation of a Coastal Aquifer System in the Eyre Peninsula, South Australia, using Nuclear Magnetic Resonance Methods -- 7. Airborne transient EM methods and their applications for coastal groundwater investigations -- 8. Geophysical investigations of saltwater intrusion into the coastal groundwater aquifers of Songkhla City, Southern Thailand -- 9. Three-dimensional seawater intrusion modelling of Uley South basin, South Australia -- 10. Application of a rapid-assessment method for seawater intrusion vulnerability: Willunga Basin, South Australia.- Part III Impacts on Groundwater Conditions -- 11. Groundwater Composition and Geochemical Controls in Small Tropical Islands of Malaysia: A comparative study -- 12. Atoll groundwater resources at risk: Combining field observations and model simulations of saline intrusion following storm-generated sea flooding -- 13. Seawater Intrusion Assessment and Mitigation in the Coastal Aquifer of Wadi Ham -- 14. Seawater intrusion under current sea-level rise: Processes accompanying coastline transgression.- Part IV The Way Forward: Solutions and Outlook for Groundwater Management -- 15. Integrated Groundwater Use and Management in Vulnerable Coastal Zones of Asia-Pacific -- 16. Coastal groundwater and its sup-porting role in the development of Gunungsewu Geopark, Java, Indonesia -- 17. Gascoyne River, Western Australia; Alluvial Aquifer, Groundwater Management and Tools -- Index. Groundwater management and conservation becomes a more and more important issue in the heavily urbanized coastal zones of the Asia-Pacific region. This volume presents a comprehensive overview of the status of coastal groundwater research in this diverse region. It includes latest methodologies and technologies to assess processes associated with coastal groundwater development. Case studies and local examples from a broad geographical range of continental shoreline and island settings give an understanding of the diversity of coastal aquifers and the groundwater recourses they harbour. Audience: By providing a clearer understanding of the hydrogeological and hydrochemical processes, this volume offers a critical tool to coastal researchers, geoscientists in related fields, water engineers, groundwater managers and decision makers as it illustrates the human and environmental impacts on coastal groundwater resources and the relationship to coastal zone management strategies and the development of sustainable management approaches.