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Weeknights at 7pm on TVNZ 1

Seven Sharp – Meet the man who protects NZ's famous Waitomo glow worms caves

  • Friday 29 Sep 2017

With thousands of tourists tramping through the fragile environment, Karl Fisher has been tasked with protecting it.

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Meet the man who protects NZ's famous Waitomo glow worms caves
  • Friday 29 Sep 2017
  • Seven Sharp Clips