Ogof Nadolig

Ogof Nadolig is a cave system in Alyn Gorge, Wales that extends approximately 300 meters underground through limestone formations. It contains several narrow passages with multiple chambers, some requiring crawling and careful movement through the connected spaces.

The cave system was discovered in 1978 by the North Wales Caving Club, marking a significant moment in Welsh speleological exploration. This discovery added to the known network of underground formations in the region.

The Welsh name Ogof Nadolig means Christmas Cave, reflecting how local people traditionally name geological formations in their own language. This naming practice remains part of how cavers and residents refer to the site today.

Access to the cave involves following a track eastward on the north side of the valley toward a sewerage treatment plant, then walking uphill to reach the entrance. The route is on foot and visitors should be prepared for uneven ground and steep sections of the approach.

The final section of the cave connects to the surface through a shaft sealed by a locked manhole cover, creating an unusual exit point. This exit route is typically not open to visitors but demonstrates the unconventional structure of the underground space.

GPS coordinates: 53.18091,-3.21296

Latest update: December 14, 2025 18:12