McArt's Fort

📍 Belfast, Antrim

🏛️ Attraction

Last updated: 3 June 2026

Overview

McArt’s Fort sits at the summit of Cave Hill, a limestone ridge that rises sharply behind Belfast to 1,207 ft (368 m). The site is an Iron-Age rath, defined by a flat stone platform roughly 150 ft by 180 ft, protected on three sides by natural drop-offs and on the fourth by a substantial man-made ditch and rampart. From this vantage point, the entire city unfolds below, stretching out to Belfast Lough and the Belfast Hills. On clear days, the visibility extends across the North Channel to the coast of County Down and beyond.

The hill’s distinctive profile has long drawn comparisons to a human silhouette. In the 19th century, locals began calling it “Napoleon’s Nose,” a nickname that stuck and remains a favourite subject for photographers. The fort itself is the highest point in the country park and offers one of the most direct, unobstructed perspectives of Belfast’s urban and maritime landscape.

History & Legend

The rath dates back over two millennia, though its most famous historical association belongs to the early modern period. Local tradition links the site to the O’Neill dynasty, with the name “McArt” likely deriving from MacArt O’Neill, a clan member who reportedly fell during the Elizabethan wars. While the exact origins of the fort are lost to time, its strategic placement was never in doubt. 19th-century observers noted how the earthworks commanded every approach to the developing city.

Cave Hill’s network of natural limestone caves played a crucial role in Ulster’s turbulent history. In June 1795, members of the United Irishmen gathered in the caves to swear an oath of rebellion, a pivotal moment that would later spark the 1798 uprising. The caves also served as shelter for the MacGilmore clan during the 18th century.

A weathered stone seat once stood near the fort’s centre, long rumoured to be the throne of local chieftains. Though its exact origins are debated, it became a focal point for 19th-century visitors before falling victim to vandalism in 1896. Today, the fort’s earthworks remain remarkably intact, offering a quiet, atmospheric space to reflect on centuries of occupation and resistance.

What to See & Do

  • The Fort Platform – Step onto the flat stone surface and trace the line of the ancient ditch. The rampart is still visible along the northern edge, giving a clear sense of how the site was defended.
  • Panoramic Views – Face north to take in Belfast Harbour, the River Lagan, and the city centre. Turn south to see the rolling slopes of the Belfast Hills and, on exceptionally clear days, the distant peaks of the Mourne Mountains.
  • Napoleon’s Nose – The ridge’s silhouette is most striking when backlit. Arrive just before sunrise or during the late afternoon to catch the shadowed profile against the sky.
  • Limestone Grassland – The plateau is a protected habitat. In spring, it carpets with wild thyme and bluebells, attracting native bees and butterflies. Summer brings wild strawberries, while autumn turns the surrounding woodlands into a mix of amber and russet.

The Walk & Surroundings

McArt’s Fort is the centerpiece of the Cave Hill Loop, a well-signposted 3.2 km (2 mi) circular route that takes most walkers between 60 and 90 minutes. The path begins near the Belfast Zoo car park and climbs steadily through ancient woodland before opening onto the grassy plateau.

Along the way, you’ll pass several points of interest:

  • Belfast Castle – A 19th-century mansion set in formal gardens, built on the site of a medieval tower house. It’s a short detour off the main loop and worth visiting for its architecture and grounds.
  • The Punchbowl – A large, semi-circular depression carved by glacial action. It was historically used for cattle coralling and offers its own dramatic viewpoint over the city.
  • Prehistoric Cairns – Scattered along the lower slopes are several burial cairns and standing stones, hinting at the hill’s long-standing spiritual significance.

The route is rated easy to moderate and is suitable for families with older children. Dogs are welcome on a lead. Early mornings are ideal for birdwatching; kestrels, buzzards, and red kites frequently circle the thermals rising from the cliffs.

Practical Information

Getting There – The most straightforward trailhead is the Upper Hightown Road car park. From there, follow the signposted path south. The ascent to the fort takes roughly 25 to 30 minutes on a well-marked gravel track.

Opening Hours & Fees – Cave Hill Country Park opens at 07:30 am daily. Gates close at dusk, with exact times changing seasonally. There is no admission charge for the fort, the park, or the walking routes.

Parking – Free parking is available at the Upper Hightown Road car park and at the Belfast Zoo entrance. Both locations are within a short walk of the trailhead.

Facilities – Public toilets are located at the zoo and near the Belfast Castle visitor centre. A small information board at the fort provides a map of the loop and a brief overview of the site’s history.

Accessibility – The final approach involves an uneven gravel surface and a short, steep climb. The fort itself is not wheelchair-accessible, but the path is manageable for most able-bodied visitors and those with steady mobility.

Contact – For current park updates or trail conditions, call 028 9077 6925.

Safety & Tips – The summit is fully exposed, and wind speeds can pick up quickly even in summer. Check the forecast before heading up, and stay on marked paths to protect the fragile limestone grassland. Bring sturdy footwear with good grip, as the gravel can become slippery when damp. The site is open year-round, but winter visits require extra caution due to ice and reduced daylight.