We chose to book this tour via Viator rather than through Viking Orion. In fact Viking did not offer a true tour of the glow worm caves. We found the tour guide, who is also the owner of Tauranga Tasting Tours, Paul just fabulous. We were in a small SUV (A very private personal tour) and rode throughout the very beautiful New Zealand Farmland (Though brown from drought). We saw many different items and Paul had significant knowledge of the Maori culture, the farm and dairy industry, Kiwi birds and fruit, glow worms, hydro power and Tauranga industry. This tour is a must. The glow worms were worth the long trip (About 2- 2 1/2 Hours). The tour was very nice. The caves are well guided and the worms were/are beautiful. We did see the pair of Kiwis in their nocturnal habitat. We had to move quickly to meet our cruise times, so we couldn't dally. We also ate local food for lunch that was quite interesting and good. This is a perfect reason why to book outside of the cruise line. The tour was priced better than most tours by Viking and was truly awesome.They got us back in plenty of time to re-embark as well. I cannot say enough good things about Paul.