Raurimu Spiral - that was just spectacular!
You really know how small New Zealand is when you meet your son's German teacher on the platform in Hamilton (2 hours south), who is on the same train and then chat with him through out the journey, and then when you get to Wellington, you hear your name being called out on the platform,turn around and there's one of your workmates! (never of us had no idea we were on the same train all that time!).
Go to Kiwi Rail to learn about our train journey/ book yourself a trip - it really is a journey every kiwi should do I think!