Photograph by Michel Roggo
"Te Waikoropupu Springs are the largest freshwater springs in New Zealand and the largest cold-water springs in the Southern Hemisphere. According to Roggo, they contain some of the clearest water ever measured.
Roggo made this picture a few weeks ago by mounting his camera on a pole. He made no contact with the water, because touching it in any way is prohibited in order to protect water quality and cultural heritage.
"To local Maori, Te Waikoropupu Springs are a taonga (treasure) and wahi tapu, a place held in high cultural and spiritual regard," said Roggo.
He added, "As a European, it was really amazing to see that people have such respect for water. For us water is to make electricity, or put waste in it, or I don't know what."