http://www.waitomo.com/waitomo-glowworm-caves.aspx
There are several options you can do with the caves. You can do “standard” tours to go through the caves and look out for the glow-worms. Or you can go with the Black-water rafting company and have a more exiting tour “tubing” through the caves. Or you can take the extreme and use the same company to “climb” through the caves (“Fitness test necessary”).
Take a guess what I did 🙂
“The Odyssey” http://www.waitomo.com/Black-Water-Rafting/Pages/black-odyssey-tour.aspx
Crawling through really tight caves. Full climbing equipment. Zip lines. Ladders. Swings. WOW – that was just soooo great (and exhausting – needed 3 shirts this day, one for redwoods, one here, one to continue onwards!)