Northern Ireland’s compact size means genuinely varied walking - coastal, mountain, forest, and heritage-estate routes - is realistically reachable within a single trip.
Coastal Walks
The Giant’s Causeway offers three official trails: an accessible 1-mile Blue Trail direct to the basalt columns, a more demanding clifftop Red Trail, and a moderate Green Trail with North Channel views (see this site’s own dedicated Giant’s Causeway content for full detail). The wider Causeway Coast Way extends to a substantial 14-mile point-to-point walk from Ballintoy to Portballintrae. Shorter coastal options include the Carrick-a-Rede coastal approach (around 2 miles), Portstewart Strand’s dune-backed beach walk, and Whitepark Bay’s clifftop route (see this site’s dedicated pages on each).
Mountain and Hill Walking
Slieve Donard (850m, the Mournes’ highest peak) is reached via the Glen River path from Donard Park, Newcastle, following the historic Mourne Wall for much of the ascent - a genuinely demanding route requiring good fitness (see this site’s dedicated Slieve Donard guide for full detail). Divis and Black Mountain, in the Belfast Hills, offers a roughly 3-mile summit trail with views over Belfast and Lough Neagh. Cave Hill, leading to McArt’s Fort, is a roughly 3.8-mile circuit tied to real local folklore. Slemish Mountain, linked to St Patrick’s early life in Ireland, is a short but steep climb, particularly popular in March. The Cuilcagh Boardwalk Trail (around 7.5 miles) crosses protected blanket bog and typically requires advance booking due to conservation limits.
Forest and Woodland Walks
Tollymore Forest Park offers a gentle 2.5-mile riverside route along the Shimna River and is a real Game of Thrones filming location. Castlewellan Forest Park offers both short family routes and longer lake-circuit walks. Banagher Glen, in County Londonderry, is a roughly 6-mile return route through some of Ireland’s oldest surviving oak woodland.
Heritage and Estate Walks
Castle Ward’s boundary trail (around 8 miles) passes Audley’s Castle and the estate’s real Winterfell filming locations, with views over Strangford Lough. Mount Stewart and Florence Court both offer waymarked estate trails through historic gardens and woodland (Florence Court’s Blue Trail passes the historic Florence Court Yew, said to be the parent tree of Irish yews found in gardens worldwide). Downhill Demesne’s Bishop’s Gate Trail takes in views of Mussenden Temple.
Family-Friendly Routes
Minnowburn, in Lagan Valley Regional Park, offers a flat, pushchair-friendly riverside circuit. Mount Stewart’s Red Squirrel Trail combines gardens, lake views, and wildlife spotting. Crom Estate, in County Fermanagh, offers island and woodland trails with historic ruins.
Planning Your Walk
Northern Ireland’s weather changes quickly, especially on exposed coastal and upland routes - carry waterproofs even in summer. Popular routes with limited capacity (Cuilcagh Boardwalk, Carrick-a-Rede) often require advance booking, particularly at weekends and in peak season - confirm current requirements before travelling. Public transport along the Causeway Coastal Route makes several point-to-point coastal walks feasible without a car.
