Sears Island is a small island off the coast of Searsport, Maine. This protected island is the largest undeveloped, uninhabited, causeway-accessible island on the east coast. There is a small network of trails around this unique place managed by the Friends of Sears Island. Here is a helpful PDF map of these trails with their descriptions on the second page: friendsofsearsisland.org/wp-content/uploads/2022/06/FOSI-Map-for-web-2022.pdf