//
Photo: Traveler100, CC BY-SA 3.0 via Wikimedia Commons
The famous Dorothea Quarry is a flooded disused quarry, which is now a popular (unofficial) training site for divers from across Wales and central and north-west England. It has acquired a bit of a bad name due to a number of accidents and fatalities. Parts of the quarry are up to 100m (300ft) deep, and it seems that some divers are tempted to push the limits too far.
Dorothea quarry is a disused slate quarry in the Nantlle Valley area in North Wales. It covers a large area near the village of Talysarn and contains three flooded deep lakes.
© OpenStreetMap contributors
small range of mountain with great views and hiking