Maine Duck Tours, Portland

A Gulf of Maine inlet, Casco Bay is chock-full of iconic nautical New England sites like lighthouses and lobster boats. Extending into the bay is the peninsula of Portland, Maine, where fishing wharves meet metropolitan nightlife—and more than one-third of the state's total population. Offering up the best of both of these worlds are the amphibious vehicles of Maine Duck Tours. Each 60-minute tour is fully narrated, and their various routes include regional points of interest like the Victoria Mansion, the Arts District, harbor seals, and more. Available for groups and charters, these land-sea tours are led by U.S. Coast Guard-licensed captains.