Ardgillan Park, Balbriggan, North County Dublin.
Ardgillan Park consists of 200 acres of managed parkland surrounding the 18th-century pile of Ardgillan Castle. It offers 8km of walking trails, and its location beside the Irish Sea in north County Dublin ensures fabulous coastal views, while keeping it accessible even when upland areas are snowbound. The walkways cross a mixture of open meadow and woodland, with a host of extras including a children’s playground, an impressive walled garden, an old ice house and, of course, the mansion itself. A lovely way to spend a half-day outdoors with the family.