NZ 30 Hooker Valley View
The Hooker Valley track is a 7km walk in to the base of Mt Cook. This is the view that we have to endure along the way :) The water is white or as they sometimes call it "glacier milk" as explained in Wikipedia
Rock flour, or glacial flour, consists of fine-grained, silt-sized particles of rock, generated by mechanical grinding of bedrock by glacial erosion or by artificial grinding to a similar size. Because the material is very small, it becomes suspended in meltwater making the water appear cloudy, which is sometimes known as glacial milk.
When the sediments enter a river, they turn the river's colour grey, light brown, iridescent blue-green, or milky white. If the river flows into a glacial lake, the lake may appear turquoise in colour as a result. When flows of the flour are extensive, a distinct layer of a different colour flows into the lake and begins to dissipate and settle as the flow extends from the increase in water flow from the glacier during snow melts and heavy rain periods. Examples of this phenomenon may be seen at Lake Tekapo, New Zealand, Lake Louise, and Peyto Lake in Canada and Gjende lake in Norway.