Learn more about visiting the island: Visiting Great Captain Island in ConnecticutSheffield Island LighthousePin Sheffield Island Lighthouse. Learn more about visiting the island: Visiting Sheffield Island Lighthouse in Norwalk, CTRose Island LighthousePin Rose Island Lighthouse. Learn more about visiting the island: Visiting Rose Island in Rhode IslandPrudence island LighthousePin Prudence Island Lighthouse. Learn more about visiting the island: Visiting Monhegan Island in MaineBlock Island North LightPin Block Island North Light. Learn more about visiting the island: Visiting Thacher IslandStraitmouth Island Light StationPin Straitsmouth Island Light Station.