Author 'Annie.reymondie' (Id 206506 ) : Close to the lake Pukaki also has this blue so strange linked to the 'flour of stone' are present in the water, a sediment that is created there in the time when the lake basin was colonized gradually by a glacier at the bottom stony. The rocks of the basin and the glacier) are ground between them as, filing this flour in the water frozen in the glacier, giving it the milky appearance which reflects the rays of the sun...