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Old slate mines, on the other hand, are apparently a great site for underground trampolining - https://www.atlasobscura.com/places/llechwedd-caverns-trampoline-

Old slate mines, on the other hand, are apparently a great site for underground trampolining - https://www.atlasobscura.com/places/llechwedd-caverns-trampoline-park https://www.atlasobscura.com/places/llechwedd-caverns-trampo...

NeedMoreTea 8y ago
Why on earth would you want to trampoline underground? Blaenau Ffestiniog Ahh. It's always raining up top. Makes perfect sense. :)
- ENTP 8y ago
  Never rains in Blaenau!!!
  - sideshowb 8y ago
    Liquid sunshine butt.