Retrogressive Breach Failure in a Tropical Sandy Spit: A Case Study in Puntarenitas, Costa Rica

On Thursday, February 8th, 2024, a subaqueous slope failure occurred adjacent to the sand spit terminus at Puntarenitas, Puerto Jiménez, Costa Rica, whereby sediments were mobilized from a nearshore area encompassing approximately 410 m² of beach front. Investigation procedures included salinity, temperature, and density profiling at multiple stations, complemented by underwater videography.…