Overview
Black Mountain and its higher neighbour Divis give you the widest view over Belfast for less effort than the better-known Cave Hill – the whole city, Belfast Lough and the shipyard cranes laid out below, with Strangford Lough, the Mourne Mountains and, on a clear day, the coasts of Scotland and Wales beyond. At 389 m (1,275 ft) Black Mountain is the lower of the pair, sitting just south of the 478 m Divis summit on the north-west edge of the city. The catch is underfoot: this is open blanket bog, and it stays wet and spongy for much of the year. Once a restricted military zone, the hills are now looked after by the National Trust, though they remain a working British Army training area, so don’t be surprised by the sound of the ranges.
Before you go: the upper car park and toilets are closed from 26 January 2026 until May 2027 for the National Trust’s ‘Divis – A View to the Future’ works. Check the National Trust page for the current parking arrangements before setting out.
History & Landscape
The name Divis comes from the Irish Dubhais, ‘black ridge’; Black Mountain takes its own name from its association with that darker neighbour rather than sharing the Irish word. The area’s height made it a natural lookout, which is why the summits still carry concrete trig pillars. The one on Black Mountain’s top was used in the 1825 Ordnance Survey mapping of Ireland – the first proper survey of the whole island, and the reason a two-year community project, ‘Maps and Memories’, marked its bicentenary here in 2023.
The landscape itself is a living classroom in upland ecology. You’ll notice rows of flat stones laid across the slopes – known as stone pitching. These ancient drainage channels protect the fragile peat and bog from erosion while giving walkers a firm footing. The National Trust actively maintains the heather and grassland through managed grazing and careful trail upkeep, ensuring the habitat remains vibrant for native wildlife like red grouse, curlew, and ring ouzels. Walking here feels like stepping into a working peatland, where the ground breathes and the horizon stretches uninterrupted.
The Ridge Walk
The most popular route is the Divis & Black Mountain loop, a well-marked trail that rewards effort with uninterrupted panoramas.
- Length: 4.2 mi / 6.7 km
- Duration: up to 3 hours
- Difficulty: Moderate (the National Trust’s own grading)
- Best for: Reasonably fit walkers happy on uneven, boggy ground
The walk begins at the Divis Mountain car park, just before the Divis Barn Café. After passing the kissing gate, the path climbs steadily to Divis’s summit before traversing the ridge south-west toward Black Mountain’s own trig point. Along the way, you’ll pass “Bobby Stone”, a natural rock outcrop that serves as a popular resting spot. The descent follows a more gradual path back toward the car park, often crossing sections of open bog where the ground can be spongy after rain.
For a shorter option, the Divis Mountain loop covers 3 mi (4.8 km) and takes about 1–1.5 hours, following the summit ridge and returning via a paved descent with views over Belfast Lough.
What You’ll See
From Black Mountain’s trig point, the vista stretches across the entire region:
- Belfast City: The urban sprawl spreads out below, with the iconic yellow cranes of the Titanic Quarter (Samson and Goliath) standing out against the harbour.
- South & South-West: Strangford Lough cuts into the coastline, backed by the jagged peaks of the Mourne Mountains.
- North & North-East: The Antrim Plateau and Slieve Gullion dominate the horizon.
- On Exceptional Days: Atmospheric clarity can reveal the Isle of Man, the Scottish Highlands, and even the Welsh coast. Visibility is highly dependent on weather conditions, but winter mornings often offer the sharpest long-distance views.
Practical Tips
- Footwear is non-negotiable: The stone-pitching becomes slippery when wet, and bog sections can be deep. Waterproof walking boots with good ankle support are essential.
- Check the weather: The ridge is fully exposed. Wind speeds can double at the summit, and fog rolls in quickly. If visibility drops below 1 km, the trail can be disorienting.
- Dogs are welcome: Keep them on a short lead, especially near grazing livestock or military training areas.
- Facilities: There are no facilities on the mountain itself, so carry water and a snack. Note that the site toilets are among the facilities closed during the 2026–27 works, so don’t rely on them – go before you arrive.
- Mobile signal: Coverage is patchy on the summit. Let someone know your expected return time and consider downloading an offline map.
Getting There & Nearby
The Divis Mountain car park sits just off Tipperary Road, roughly a 20-minute drive from Belfast City Centre. Parking is free but limited and fills quickly on fine days – though bear in mind the upper car park is closed until May 2027 (see the warning above), so check the current arrangements first. There’s no safe pedestrian access from the main road and the old shuttle bus from the city no longer runs, so drive or cycle: the climb up the quiet residential roads is popular with local cyclists.
After your hike, the area offers easy access to other highlights. Belfast Castle sits higher up in the hills and provides a historic contrast to the rugged ridge walk. Back in the city, the Belfast Botanic Gardens offer a peaceful stroll, while the wider city centre is packed with independent pubs, galleries, and street art.
Plan your visit for late summer when the heather is in full purple bloom, or winter when the crisp air typically delivers the clearest long-distance views. Pack a windproof layer regardless of the season – the weather on the ridge changes fast, and the summit offers no shelter.