Nice shots! Sometimes the water in the fiord here in Norway is looking also different - normally is crystal clear but there are days that it looks like a mud... I don't know the reason but maybe it is all about the currents of the water or some storms passing by in other nearby locations...
This photo I made not a long time ago and it shows how it is sometimes here:
Interesting, love the images. I've had friends visit various parts of Norway and do some diving with the orca's you have there. All of the images I've seen from them is beautiful clear water. Thanks for sharing.
I had one friend also who was diving with orca's near Tromsø, he said it was the strongest experience he had. Must be incredible...