Finally, a real glacier

We are at the end of the passage and there is the glacier.  They tell us there are seals all over the ice, but we don't see them with the naked eye.  This is the Dawes Glacier, named after the 30th Vice President of the US-- under Calvin Coolidge.  The glacier is 1/2 mile wide, 25 miles long, and 175 feet. above the water line.  We don't have an answer yet about the " black tracks".  

This is taken with Bob's telephoto lens and then blown up again.  We must be quite a distance away.