This was not an Oxford University expedition. However it carried on the long tradition of OUCC expeditions to the Picos de Europa, and involved some OUCC members and a wide range of cavers from the UK and beyond.
The Expedition explored various leads in cave C4 (Torca de la Regallon), including passing the downstream sump (Special Agent Sea) after a 150m dive, to upstream 2/7
Documents:
The survey note found in upstream 2/7 during Tony Seddon’s dive, left by Hilary Greaves and Lynn Cooper during the 2000 expedition to 2/7 (Photo: Paul Diffley)