Exploration of Cueva del Nacimiento continues, discovering another 800m at the far end of the system, including one of the largest chambers in the cave. A new ‘terminal’ sump was discovered in Cueva de la Marniosa and Cueva C29, a 1975 discovery of -120m pushed to -450m and ongoing.
Report and photos | Photo: Cueva de la Marniosa (© Rob Middleton)