I Found this place accidentally when looking up free places to go in NZ. I Arrived only to see a fee was applicable, so it was a let down as from the main gate it did not look money worthy.... BUT, then the lady at the gate explained what the walk entails and I'm so glad I paid as this is one of the most beautiful places we saw in the North Island.
I think it was 50 for 2 adults and 2 kids.
The spring water is amazingly blue, the redwoods are magnificent (bigger than the ones we saw at the tree top walk), the spring it's self was awesome and if you bring a bottle you can collect your own spring water further up the trail, swans and ducks were all around.
The fact it I think it is underadvertised meant we got fantastic photos without any other tourists in the background.
I was looking for nature experiences in NZ and this did not let me down, I just have no idea why i never saw it in any travel guides.