After leaving Juneau early afternoon, we went by cruise ship very slowly up the Tracy Arm Fjord to the Sawyer Glacier, not wanting to hit icebergs in the water. The captain wasn't worried about the ice piercing the hull of the ship but rather that an iceberg could damage a propeller and then we would have been in trouble. We were told that this fjord is the longest navigable fjord in the world. The scenery was beautiful. We eventually reached as close as we could go to the glacier, then the ship slowly turned around and we were able to see the area from all angles before going back. It was daylight until after 9:30 at night so we were able to spend many hours in this fjord before finally reaching Skagway the following morning.