Overview
- A zip wire broke as a caver began crossing an underground lake in the Croesor-Rhosydd complex near Blaenau Ffestiniog on Sunday afternoon.
- North Wales Cave Rescue Organisation and South Snowdonia Search and Rescue responded after a police alert around 3pm, with a Coastguard helicopter requested in case a stretcher extraction was needed.
- The casualty reached the Rhosydd entrance without assistance before being collected by the helicopter and flown to Ysbyty Gwynedd in Bangor.
- Rescue volunteers assisted the rest of the group to exit and stood down by the evening after coordinating movements between the mine entrances and nearby vehicles.
- Rescuers describe the through-trip as North Wales’ most frequently rescued underground location, with informal ropes, bridges, zip wires and boats, and they warn it is suitable only for experienced, well-equipped visitors.