The objectives of the groundwater component of TWAP are: firstly, to provide a description of the present conditions of transboundary aquifers (TBA) and aquifers in small island developing states (SIDS) that will enable the GEF IW Focal Area to determine priority aquifers/regions for resource allocationand secondly, bringing the major issues, concerns and hotspots of these transboundary aquifer systems and SIDS aquifers to global attention, and catalyse action.