The University of New South Wales (UNSW Sydney) is offering a PhD opportunity focused on using laser scanner 3D mapping of caves to understand water flow pathways from the surface to the groundwater. This research aims to utilize caves and underground spaces as observatories for tracking water movement towards groundwater, with a particular emphasis on LIDAR mapping of cave ceilings at various sites across Australia. The project seeks to identify water flow paths and characterize how groundwater is replenished, contributing to the broader understanding of climate and environmental science. The position is funded by the Australian Research Council Laureate Fellowship Project, led by Professor Andy Baker. The project, titled 'Caves and their stalagmites: linking climate to groundwater recharge,' provides a stipend between $40,000 and $50,000 AUD per year for up to four years, along with generous support for fieldwork and conferences. The opportunity is open to both domestic and international students, though international applicants must apply for or hold a Tuition Fee Scholarship. Applicants should have a keen interest in LIDAR mapping, cave hydrology, and groundwater research. General UNSW PhD requirements apply, including language proficiency and academic qualifications. For more information on the application process, candidates are encouraged to review the UNSW PhD application guidelines and contact Professor Andy Baker directly via email, providing a copy of their CV. This project is ideal for students interested in Earth science, environmental science, geology, and hydrogeology, and offers a unique chance to contribute to climate and groundwater research in Australia. For further details and to apply, visit the UNSW research application page or contact the supervisor directly.