Overview
- Two men, aged 40 and 47, entered Cueva del Agua around 19:00 to finish safety lines for a planned practice.
- A sudden storm near 19:30 caused a rapid surge of water inside the cave, creating strong currents and internal waterfalls that blocked retreat.
- Three colleagues waiting outside raised the alarm to 112 at 01:14 after confirming the pair were trapped by flooding.
- A three-person GREIM team from Cangas de Onís established a new line under heavy flow and noise and guided the men out at 04:25.
- The rescued speleologists showed mild hypothermia, used a thermal blanket to retain heat, and had equipment not suited to the abrupt weather shift.