The Maine Narrow Gauge Railroad is a great place for kids to learn about this method of transportation. Located just a short walk from the Old Port, the museum features railcars and a steam engine that they can explore. In addition, there is a ride that departs on the hour from 10:00 a.m.–3:00 p.m. for a 35-minute ride along the coast. The tracks follow the same path as the original Atlantic and St. Lawrence RailRoad, and you can see forts, lighthouses, and islands along the way. Closed on Fridays.