Camping at Duck Harbor was one of the quietest, most peaceful experiences I have ever had. There are only 5 campsites, all with covered, wooden platforms to sleep on. In early October, right before the end of the season, none of the other four sites were occupied. There is a fresh water pump a short hike away and the hiking trails around the southern half of the island are wonderful. I could not recommend it more highly for anyone who enjoys camping off the beaten path and wants to avoid the crowds of the Mount Desert Island part of the park.