Hidden Earth 2024
Matienzo Caves 2024
45 minute Lecture|Juan Corrin

Abstract
Another successful year for cavers and cave divers in Matienzo, Cantabria. Over 6km of passages surveyed with the Four Valleys System growing by over two kilometres to maintain its 40th position in the World's Longest Caves list. Draughting digs, as usual, appear tantalizingly close to opening up and providing links between systems.
Plenty to go at in 2025, the 65th year of Matienzo caves explorations!
More from 2024
Lecture|Peter Talling
The Remote Pico del Oro Plateau in North Peru: Searching for Caves in 2,800m Deep Limestone
Lecture|John Gunn
Sulphate caves and karst in the South Harz Mountains, Central Germany
Lecture|Simon James Brooks
Peak District Update 2023-2024 (AKA Pissing around in the Peaks 2023 to 2024)
Lecture|Steve Whitlock
Cuetzalan, 20 Years On From The First Sump Rescue, and the Future
Workshop|Paul Taylor & Footleg
Video Workshop - discussion about equipment and ideas -
Lecture|Martyn Farr
Brazil: bloody big, bloody FANTASTIC
Lecture|Rostam Namaghi
In defence of caving politics, a history and possible future of the BCA
Lecture|Frank Pearson
Northern Round-Up
Film|Thomas Arbenz
Achik Kol - Uncharted Caves of South Garo Hills
Lecture|Tim Nichols
Major Extensions in Redhouse Lane Swallet