"Underground Flood Timing" delves into the critical subject of cave floods, offering insights into how these sudden and dangerous events can be predicted and managed. The book examines the hydrological processes that feed cave systems, the geological factors that influence water flow within karst landscapes, and the practical methods used for predicting floods in these unique environments. One intriguing fact is how rainfall infiltration rates combined with an understanding of karst geology are key to predicting these events. Another key insight is the shift from generalized hydrological models to site-specific assessments, recognizing the unique nature of each cave. The book takes a practical, problem-solving approach, providing cavers, scientists, and risk managers with the knowledge to assess flood risks. It starts with fundamental concepts of cave hydrology and karst geology, then examines factors influencing flood timing, such as rainfall intensity and underground drainage pathways, using case studies. Finally, it integrates these elements into a comprehensive flood prediction and mitigation strategy, offering techniques from simple gauges to advanced modeling software. This comprehensive approach makes it a valuable resource for anyone involved in cave exploration or management.