Mark Island, Petit Manan, Egg Rock, and possibly even more lighthouses are visible from the 3.5-hour Puffins, Lighthouses, & Seabirds Cruise abroad the M/V Eden Star. A professional naturalist points out seabirds and mammals only seen offshore. Cruise carries 65 passengers. See website for further details and times. Tours leave from The Atlantic Oceanside Hotel: 119 Eden St, Bar Harbor, ME 04609. Call 207-801-2300 or email seadawg@gmail.com