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Is underground trampoline the most fun place on earth?

It has been called the most fun place on earth by celebrity gossip columnist Perez Hilton.

But is what is thought to be the world's first underground trampoline at a former slate mine in Blaenau Ffestiniog worth jumping up and down about?

Matthew Richards went to find out.

  • 03 Jul 2014
  • From the section Wales
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