Glacial waters of Alaska

Glacial waters are opaque. This was a real surprise to me. The glaciers contain a lot of silt. When the ice breaks off & melts the silt gives it a cloudy or milky appearance. Another thing I hadn't realized is the variation in the colors of the water - from jade green, to bright aqua, to pale taupe. The inner parts of icebergs are brilliant clear blue, brighter & darker than baby blue. . . nearly an intense sky blue.