Karst and Caves of Soqotra Island (Yemen) - Interdisciplinary expeditions 2000-2025 BHB 92
89 pages, many cave maps and photos; Berlin 2026. Peter De Geest, Michal Hejna & Jos Beyens. This is an update to Volume 20 in this series, which described 28 caves with 22.7 km of passages. The present volume includes Belgian and Czech expeditions that have explored nearly 39 km of passages in 90 caves to date--including Giniba Cave, 13.5 km long, and Difshelei, 282 m deep. It features numerous cave maps and chapters on biospeleology, archaeology, and paleoclimate research. The text is in English with summaries in French, Arabic, Czech, and Flemish.