We just had to stop while driving over the Whataroa Bridge near the town of Whataroa in New Zealand. The blue glacial water under the bridge was just phenomenal. A glacial river's blue or blue-green color is caused by "rock flour", which are fine particles of rock ground down by glaciers. These particles, suspended in meltwater, scatter sunlight, giving the water a distinctive hue. The effect is most noticeable in glacier-fed lakes, where the water can appear turquoise or milky white.
Let me start by introducing myself. I'm Frank from the Netherlands, currently sixty-eight years old and retired for over a decade already. This gives me plenty of time to spend on one of the most fascinating hobbies I have, photography. It combines really well with travelling, another.. Read more…