Coral reefs play a critical role in subsistence livelihood and economic development of Pacific Island Countries (PICs). Its degradation is often associated with climate change and pollutant transport via river discharge. Yet only recently, a major missing source has been identified as submarine groundwater discharge (SGD). This is important given PICs population density mainly surround coastal areas and often have inadequate water treatment facilities or substandard/non-existent regulations. Additionally, only handful of SGD studies have been conducted due to lack of personnel in PICs that can conduct quality research to support water resources management (WRM). Therefore, this project aims to develop capacity in the context of hydrological research of SGD in the region. This project adopts a transdisciplinary framework from its parent core project (i.e., LINKAGE Project) to address project longevity issues in region due to lack of community inclusiveness. It will be conducted in Palau and includes Fiji participants to ensure dissemination of knowledge throughout the region. In the outcomes of the project, the transdisciplinary approach ensures the community and stakeholders play a role in developing suitable and customized pathways for WRM of SGDs to further protect its coral reefs. This project will deliver SGD-WRM guidelines to improve and sustain the livelihood of coastal inhabitants in PICs.