Indeed, this type of speleogenesis has enabled the exceptional trapping and preservation of sediments since the Plio-Pleistocene. Although subterranean sedimentary deposits constitute rich natural archives, as they record palaeoenvironmental information relating to cave formation, fluvial system dynamics, Quaternary hydroclimatic variations, and human activities, their study remains challenging. Sedimentation in cave environments depends not only on sediment-transfer conditions, but also on the relationships between the cave and the surface, and, above all, on geometric and volumetric constraints, the structure of the karst, and the organization of underground networks. In addition, post-depositional biogenic, hydrological, aerological, and anthropogenic processes may alter sedimentary sequences, further complicating their interpretation and often introducing uncertainty. While these sediments provide valuable insights into the regional geomorphological and palaeoenvironmental history, distinguishing regional environmental parameters from local constraints related to cave morphometry—the so-called “site effect”—remains a major interpretative challenge.