Glow worms

Went to the glow worm caves today in Waitomo, they were fantastic.  Brief history, the caves were found by white man 125 years ago.  They are limestone caves formed over zillions of years when the sea levels were higher.  When the sea levels dropped they were mostly above ground.  These flies breed in the caves and become larva on the ceilings of the caves.  To feed they emit a glow,which attracts flies, Mosquitos, et al.  They hang a sticky string about four inches long underneath themselves and when an intruder gets stuck they eat. After eight months they are grown and turn into flies without mouths who breed and lay more eggs, and the cycle continues.  Sometimes the kids even eat the parents, little buggers.  After touring the caves we descended to the new river level and took a boat ride through the caves, all in the dark, it was very impressive as it was totally silent and pitch black.  The guide pulls the boat through by hand using overhead ropes.  There are thousands upon thousands of insect eating glow worms.  Just took a dinner break.  All the rooms we book are efficiencies so we cook our own dinner and breakfast, and in the car we have a cooler bag with lunch stuff and we stop at a roadside rest stop.  Every town seems to have little tourist rest stop with a loo and a few tables in the shade.  Typical weather 15c am, 25c pm, low humidty and stars galor.  Tonight's dinner was two different salads, corn on the cob, some sliced ham left over from yesterday's lunch, white wine and girl guide cookies for dessert.  Who could ask for more.  Tomorrow geysers and hot mud.