ABSTRACT The Greek peninsula lies at the intersection of major atmospheric circulation systems, making it a key location for reconstructing past climate variability in the Eastern Mediterranean. In this study, we present a new high‐resolution multi‐proxy speleothem record from Hermes Cave, located on the shoulder of the Corinth Rift in southern Greece. Stalagmite ZCG1 grew during two distinct intervals (~123–98 ka and ~36–7 ka), separated by a pronounced hiatus of ~62 ka. We combined 230 Th/U dating, stable isotope (δ¹⁸O, δ¹³C) analyses and trace‐element (Sr/Ca) ratios to reconstruct climatic and hydrologic changes from the latter part of the Last Interglacial through to the Holocene. The early part of the record documents humid conditions followed by a long‐term trend towards higher δ 18 O and δ 13 C values, pointing to progressive aridification that culminated in growth cessation near 98 ka. Growth resumed during MIS 3 under initially dry conditions that gradually became wetter towards the Holocene, with millennial‐scale variability coinciding with Heinrich events and the Last Glacial Maximum. The Holocene section of the record documents a sustained humid phase, with several distinct episodes of reduced effective moisture, most notably during the 8.2 ka event. Comparison with marine sediment cores from the Gulf of Corinth highlights a strong coupling between regional hydroclimate, vegetation cover, and sediment flux into the marine environment. This study demonstrates that stalagmites from Hermes Cave provide a robust terrestrial complement to offshore records, offering critical insights into the timing, mechanisms and regional expression of Late Quaternary climate variability in the Eastern Mediterranean.
Pennos et al. (Mon,) studied this question.