About the seafront
Holywood grew up where it did because of the shore. The name comes from the old church — Sanctus Boscus, the holy wood — and the settlement has sat on this stretch of Belfast Lough for the better part of a thousand years.
What shaped the modern town was the railway. The Belfast and County Down line reached Holywood in the middle of the nineteenth century, and within a generation the place had become a commuter town and a seaside resort for Belfast — close enough to work in the city, far enough out to have a view. The seafront green, the promenade and the recreation grounds are the physical remains of that period, when a town of this kind was expected to provide somewhere to walk, somewhere to play bowls, and somewhere for children to be let loose.
The town's other famous survival is inland: Holywood has a maypole standing at the top of the main street, said to be the last permanent one in Ireland, and the town still dances round it. It is a short walk up from the seafront and worth the diversion.
The seafront itself has kept doing its job. Seapark still has its courts, its greens and its play park; the beach still fills on a warm Saturday; and the North Down Coastal Path — sixteen miles of it — still starts at the Esplanade and carries walkers all the way to Orlock Point.
Come for an hour with the children, or come with boots and don't come back until Bangor. Both are the right answer.