Maine Open Lighthouse Day 2015 When: Saturday, September 12, 2015 This popular annual event, which is sponsored by the United States Coast Guard, the Maine Office of Tourism and the American Lighthouse Foundation, attracts between 15,000 to 18,000 visitors each year and offers the general public the rare opportunity to climb and learn about over two dozen historic Maine lights.See more at: http://www.great-maine-vacations.com/activities-and-events-in-maine-september.html#sthash.A3o9WwSW.dpuf
For list of lighthouses: http://www.lighthousefoundation.org/maine-open-lighthouse-day/