Take the train from Dublin to the Irish countryside in Howth during this tour. See the village’s Martello tower, Howth Castle and its gardens, Great Sugar Loaf mountain, and Baily Lighthouse. Go on a seacliff walk, and keep your eyes peeled for guillemots, eagles, and seals. Go up the hill to Ben of Howth, and catch sight of Black Linn before making your way to the poet, W.B. Yeats’ boyhood home.