Glowworm Caves ~ New Zealand by Opticoverload on Flickr.
These are the Waitomo glow caves in New Zealand, and they’re named for the glowworms that inhabit them, Arachnocampa luminosa. The glowworms are endemic to New Zealand, and are around the size of an average mosquito. The walls of the caves are covered with a mushroom like fungi related to the genus Pleurotus. Albino cave ants and weta (giant crickets) also inhabit this cave system.