Whether you're crazy about old trains or just want to see the sights from a different perspective, the railroad museum has an extensive collection of locomotives and rail coaches and offers scenic tours on narrow-gauge railcars. The 3-mile jaunts run on the hour and take you along Casco Bay, at the foot of the Eastern Promenade. The operating season caps off with a fall harvest ride (complete with cider). During the Christmas season there are Polar Express rides, based
on the popular children's book.