Wow! The Waitomo Glowworm Caves attraction is a cave at Waitomo on the North Island of New Zealand. It is known for its population of Arachnocampa luminosa, a glowworm species found exclusively in New Zealand. This cave is part of the Waitomo Caves system that includes the Ruakuri Cave and the Aranui Cave. Arachnocampa luminosa, commonly known as New Zealand glowworm or simply glowworm, is a species of fungus gnat endemic to New Zealand. Both the larval stage and the imago are luminescent. The species is known to dwell in wet caves, grottoes and sheltered, humid places in forests. Its Māori name is titiwai, meaning "projected over water". - wiki