MASSACHUSETTS - Greater Boston and Cambridge

Accessibility: The lighthouse is open to private boaters by arrangement. Call 617-223-8666. Boaters must drop off passengers and anchor offshore. There are also public tours in season, on Thursdays, Fridays, Saturdays and Sundays. The Friends of the Boston Harbor Islands also run occasional cruises to the island. The Friends can be reached at 349 Lincoln Street, Hingham MA 02043; 781-740-4290. The facility: Lighthouse built 1783. Light flashes white every 10 seconds; fog signal is one blast every 30 seconds.

Accessibility: This lighthouse no longer exists (replaced by modern fiberglass structure). The modern tower can be seen from many sightseeing cruises leaving Boston and from a public trail around Deer Island. The facility: Lighthouse built 1982. Light flashes alternately white and red every 5 seconds.

Accessibility: The lighthouse is not open to the public. It can be seen from points along the shore in Winthrop (Shore Drive), Hull (Nantasket Beach), and Nahant, but is best seen by boat. The facility: Active U.S. Coast Guard aid to navigation. Lighthouse built 1905. Light flashes two white flashes every 12 seconds; fog signal is two blasts every 20 seconds.

Accessibility: The lighthouse and grounds are not open to the public; the lighthouse is best seen by boat. The facility: Active aid to navigation managed by U.S. Coast Guard. Lighthouse built 1901. Light flashes white every 2.5 seconds.