This is a picture of Waitomo Caves in New Zealand. These magical tiny lights are formed by glowworms. Glowworm is the common name for various groups of insect larvae and adult larviform females that glow through bioluminescence. They may sometimes resemble worms, but all are insects. The glowworms found in Waitomo Caves are exclusively in New Zealand and are around the size of an average mosquito.
The name “Waitomo” comes from the Māori words wai, water and tomo, hole or shaft. It can be translated to be water passing through a hole. The Waitomo Caves website says that the Waitomo Glowworm Caves were first explored in 1887 by local Maori Chief Tane Tinorau accompanied by an English surveyor Fred Mace. Local Maori people knew of the Caves existence, but the subterranean caverns had never been extensively explored until Fred and Tane went to investigate. They built a raft of flax stems and with candles as their only lighting, floated into the cave where the stream goes underground.
As they entered the caves, their first discovery was the Glowworm Grotto with its myriad of tiny bright lights dotting the cave ceiling. As their eyes adjusted to the darkness, they saw a multitude of lights reflecting off the water. Looking up, they discovered that the ceilings were dotted with the lights of thousands of glowworms. Debris and logs littered the waterway, but by poling themselves toward the embankment they were able to leave the raft and explore the lower levels of the cave. Here they found themselves surrounded by the glorious cave decorations.
In 1989, almost 100 years later, the land and the cave was returned to the descendants of the original owners. Many staff employed at the caves today are direct descendants of Chief Tane Tinorau and his wife Huti.
Here is a short video of this amazing, magical place!