We did the Raukuri cave vs the official Glow Worm one and boy did we make the right decision! A few people on our tour did the official Glow Worm one with a boat and they all said you get 5 mins max, whereas this tour, though had fewer glow worms, lasted x3/x4 times longer. No only that, you then had the rest of the huge cave system to explore (1.5 hours), which brought with it multiple sights and lots of history! Our guide, a native Mauri and 5 generations down from the original people who found this system, his name was Wee/Oui not sure how you spell it, but he was brilliant. Not only should have have his own comedy show, but he had all the insight, was super passionate about the caves and really brought the place to life. 5 Stars!