Sure we've got a lot of them in New Zealand, but what are glow worms? Many visitors to New Zealand's famous glowworm caves - in Waitomo, Waipu or Te Anau - have the romantic notion they look like the night sky. However the nature of these glowing creepy crawlies is more disturbing when brought to light. But how do glow worms work? More importantly, where can you find glow worms in New Zealand? All are questions we aim to answer as we head underground into the waipu caves. Subscribe to NZH Travel: http://bit.ly/2jHYDGv Like NZH Travel on Facebook: http://bit.ly/2I0cYg4 Follow NZH Travel on Instagram: http://bit.ly/2I0LRBH