9 a.m.- 4 p.m.; A 7-hour boat tour that visits 20 active and inactive lighthouse sites in Narragansett Bay. The tour includes views of the Newport Pell Bridge, Gaspee Point, Prudence Island and historic Fort Adams. The tour departs from Providence, travels through the West Passage to Newport, and returns via the East Passage. A stop at Rose Island includes lunch and an opportunity to explore the grounds. $110-125.