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This paper explores the application of Interferometric Synthetic Aperture Radar (InSAR) in detecting and monitoring sinkholes and cavities, focusing on its potentialities and challenges. InSAR’s ability to detect surface deformation phenomena, including subtle changes induced by sinkholes and cavities, has been demonstrated in various applications. Despite its advantages, challenges such as spatial resolution limitations and temporal sampling constraints persist, hindering precise sinkhole identification. However, the paper anticipates significant advancements with the upcoming launch of SAR constellations featuring high spatial resolution and short repeat cycles. Integration of InSAR into mainstream monitoring practices is advocated to enhance resilience and mitigate risks.