This is a very entertaining and well-run tour! We really enjoyed all of it, but it's not for the…read morefaint-hearted; e.g., you'll be wearing a wetsuit, which means you'll be getting wet and the water will seem cold at first. But seeing the glowworms and tubing down the river are so much fun it's all worth it. And then you can have lunch there, which is also really superb and a great way to finish the tour

My friend and I travelled throughout both the North and South Island for nearly 3 weeks and this…read morewas the most amazing part of our trip. Unlike the glow worm cave on the north island this place is much more isolated and less touristy (it's also nice to support a smaller mom and pop operation). The tour guides are all super pleasant and do a great job explaining to you the basic geology of caves. But the highlight is the glow worm inner-tubing portion, where you lay on your back and stare up and the beautiful glow worms as you float through the cave. The adventure ends with you inner-tubing down a mild white water rapid! OK I admit I had a bit of trouble steering the inner-tube, being the clumsy mathematician I am, but I still had a blast. The operation runs very smoothly and they even include photos for free! and they actually print some of them for you! A nice old time touch.