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The Vivian Quarry, part of the vast Dinorwig slate mines at Llanberis, was last worked in 1958. Since then it has filled with water to a depth of up to 18 metres from mountain run-offs and underground springs. It is now a diving centre, offering clear water and safe sheltered diving.

vivian diving centre llanberis
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Boulder Adventures
  • Hostel and Activity Centre
  • Sleeps 35, 7 bedrooms
  • £18 to £35 per night
  • Woodburner
  • Wifi
  • No pets
  • Accessible