Glowworm Caves, New Zealand
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The Waitomo Caves on the North Island of New Zealand are the only place in the world to see these glow worms, which are actually fly larvae that emit phosphorescence in their poop to lure in prey. The glow worms light up the inside of the caves like the night sky, a spectacular sight to find underground. An underground river flows through the Glowworm Grotto, and visitors can go tubing or on a boat ride to explore this magical place.
