When Nancy and I were there, the ferries to the island weren't starting until June 26th. We got lucky while looking for a spot to see Sheffield and Greens Ledge from, and a local resident took us to a lovely little private park on a point where we could see them both very clearly. A lady was sitting there painting a picture of Greens Ledge, and as she heard us talking she asked the name of the lighthouse, checked the spelling, and added it to her painting. Sheffield Island is extremely small, but we could see people there. We looked around a little farther, and there was Pecks Ledge! That part of the country is fantastic for all the lighthouses. Multiple places where we could stand in one spot and see up to 5 lights.