Today we went to the glow worm caves in Waitomo. Since we spent most of the time in the dark, climbing underground waterfalls and tubing down super-cold rivers, there are no photos. So let me try to paint a picture with words.
Imagine being lowered by harness into a hole in the ground tight enough that you have to wriggle your way through. Once free of the narrow spot, it’s a free fall until you are about 100′ down. It’s very dark, but there is still light coming in from the hole above. You then scramble down deeper into the cave, over slick rocks. After about 5 minutes, it’s much cooler, and almost totally pitch black.
You are hooked up to a zipline, and without so much as a warning, you are flying through the cave in total darkness! After a big swing at the end, you are unclipped from the zipline, given an inner tube, and pretty much pushed off the edge of a 15′ drop to land in the frigid water below. You drift along in total darkness, and because by now you have been underground for 1/2 hour or so, your eyes have adjusted to the pitch blackness, and you can start to see little blue threads on the roof.
These are the glow worms. They glow to attract the various bugs that find their way into the cave into their webs. There are thousands of them; they look like blue stars. The guide bangs his inner tube on the water every once in a while, as the sound makes the worms glow brighter.
After listening to an explanation of why the worms glow (which I wont repeat, so as not to ruin it for you should you decide to do this yourself one day), we leave the inner tubes behind. After warming up with chocolate and hot juice, you begin your underground hike, splashing through the underground river, lit only by your headlamps. You jump into pools, crawl your way through tight and twisty tunnels, climb underground waterfalls, and generally have a blast.
When you finally emerge, you are greeted by the warm sunshine, which feels great after 3 hours of being underground and, frankly, cold.
How’d I do?
In case that wasn’t enough, here are a few scenics taken along the way




…Mike