Te Waihou Walkway
Te Waihou Walkway lies alongside the upper reaches of the Waihou River, where the water is extremely clear and pure, with an intense blue hue.
The Waihou River is fed by many springs and from tributary streams in the Mamaku ranges. Water flows from the Blue Spring at a rate of 42 cubic metres per minute (9240 gallons per minute).
The Blue Spring is internationally acclaimed, with water from the Mamaku Plateau taking over 100 years to reach it. During this long residence in aquifers, particles and light-absorbing matter are effectively removed from the water, leaving it with a very high clarity and characteristic blue-green colour. The water is sold in service stations around New Zealand and supplies the local town of Putaruru, with no treatment necessary before distribution. - taken Apr 2012, New Zealand