Dorothea quarry- Pumphouse tunnel
This is an improved version of an earlier clip showing a short blocked off tunnel at 25m near the pumphouse. The clip also shows a typical ladder to reach the bottom of the quarry and a small bridge. Midday in July 2011 and its black as a bag with a water temperature of 5 degrees at 25m !

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Diving Dorothea Car Pile 27 5 23

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Dorothea Quarry car stack & pinnacles

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People Who Messed With The Royal Guard and Regretted It!

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Slate Quarry Beware - Other Colour Pics Share This Title (1964)

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MOUNTAIN OF HELL 2026 🏆 WINNING RUN - FULL BATTLE POV

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Dorothea Quarry, Talysarn Hall & Engine House

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My Golden Retriever Heals a Terrified Rescue Kitten in Just 3 Meetings!

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CAVE DIVING GONE WRONG- THE DOROTHEA QUARRY TRAGEDIES| DISASTER STORIES

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Most Ridiculous Worker Mistakes Caught on Camera

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How US Air Force B 52 Pilot Performed an Emergency Takeoff at Full Speed

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Dorothea quarry- Various dives in the 'shallows'.

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Dorothea Quarry: What They Left Behind | Abandoned Slate Mine 4K

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Incredible Safari Moments Caught on Camera

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104m dive Dorothea Quarry

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Very Overlooked Wrysgan Slate Mine , Blaenau Ffestiniog, North Wales Uk ,

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When Wild Animals Get Way Too Close 😱

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Bottom of Dorothea Quarry 106m dive

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Dorothea Walking Tour Part One - with Gwynfor P Jones

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The Most Unique Abandoned Quarry In Wales

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