Midworlder's Fotothing

http://en.wikipedia.org/wiki/Te_Waikoropupu_Springs

Te Waikoropupu Springs also known as the Pupu Springs, it is the largest, clearest of New Zealand's freshwater springs. The basin containing the main spring is 42 metres across, and through a system of mirrors scientists have recorded the horizontal visibility at 62 metres (203 feet) - the springs are cosideed to be the clearest fresh water in the world.

- The only place known to have greater clarity is under the Ross Sea Ice Shelf in Antarctica

- 14000 litres of water per second is discharged on average.

- The water stays underground between 2-10 years before being forced out.

One of the side pools and because of the angle of the sun ... the best view that day