I took this photo a few years ago when I visited Great Duck Island with some faculty and students from the College of the Atlantic in Bar Harbor. They own the light station and use it as a research station in the summer. Students monitor the bird population on the island, including the rare Leach's storm petrel.
Great Duck Island is about 9 miles offshore from Bar Harbor. We visited Mount Desert Rock Lighthouse, well over 20 miles offshore, on the same day. It was one of my most memorable lighthousing days ever.
Click here for more info on Great Duck Island.