Right after I took this photo, they anchored the boat in the cove, shut off the engine, shut off the generator and asked everyone to stop taking photos and to stand still on deck for five minutes. All we could hear was the sea lapping on the shore and the birdlife. The sheer vastness of Doubtful Sound does mean that you can hear the silence. Darren - this is your lightroom present with a slight exposure change and a tint change. Thanks