Island Ministries The Maine Sea Coast Mission serves the spiritual needs of residents on nine islands in Downeast Maine. Rev. Rob Benson, the minister on the Sunbeam V, serves the congregations and residents of Matinicus, Monhegan, Isle au Haut, Frenchboro and Great Cranberry, and the Mission has partnerships with churches on Islesboro, North Haven, Swan's Island, and Vinalhaven.