Seeing pukaki at first, come to the front, how should the blue be described? It is not like the glaciers in the Hook Valley Trail at the foot of the Cook Snow Mountain, like the milk lake, nor the pure blue that we saw before in Lake Te Anau. The lake is clear and transparent on the shore, but far away. It looks like a little bit of milk mixed in the blue lake water. Some people describe it as Turkish blue, Baidu, and found it is very appropriate. Visual beauty also has its scientific origin. First of all, the beginning of Lake Pukaki is related to the glacier movement. After the fall of the Mount Cook Glacier, a basin was created under the action of the erosion of the glaciers around the Mount Cook and the rockfill on the ice side, which formed a large amount of ice and snow to form the barrier lake. Second, there are a lot of rock particles and minerals in the lake. They are suspended in the lake and reflect the blue light of milk. No wonder the color of this lake is different. Pukaki Lake is very large. Before turning to the SH80, there is a viewing spot at the southernmost point of the lake. It is also the store rest area of the most famous salmon farm in the South Island. The shore is full of large reefs to avoid the impact of the lake on the dam. From here you can see the pukaki lake all the way to the northernmost Cook Mountain Range.