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Hiking trails & Routes
United Kingdom
Northern Ireland
Newry And Mourne
Ballinran Upper

Mourne Wall Challenge — Mourne

Hard

5.0

(1)

32

hikers

Mourne Wall Challenge — Mourne

12:53

34.7km

2,220m

Hiking

The Mourne Wall Challenge offers a highly demanding hiking experience through Northern Ireland's Mourne Mountains. This difficult route spans 21.6 miles (34.7 km) and involves an impressive 7300 feet (2225 metres) of elevation gain, typically taking around 12 hours and 52 minutes to complete. You will traverse rough, uneven terrain with sustained steep climbs and descents, often scrambling over rock faces on peaks like Slieve Binnian and Slieve Bearnagh, all while enjoying panoramic views of the surrounding mountains and reservoirs.

This very strenuous challenge requires a high level of fitness and experience. Given the demanding nature of the terrain and the potential for erosion, it is often recommended that groups keep their size to no more than 12 people. Always check local conditions and weather forecasts before you set out, as the mountain environment can change rapidly. Proper navigation skills are essential, though the wall itself can serve as a crucial aid in remote sections.

The Mourne Wall Challenge is notable for tracing the historic Mourne Wall, an impressive dry-stone structure built between 1904 and 1922 to protect Belfast's water supply. This engineering feat winds over numerous mountain summits, including Slieve Donard, Northern Ireland's highest peak, making the route a significant physical and mental test. The dramatic landscapes of the Mournes, including the wall itself, are said to have inspired C.S. Lewis's Narnia books.

Last updated: April 23, 2026

Tips

Your route passes through a protected area

Please check local regulations for:

Mourne AONB

Waypoints

A

Start point

Parking

Get Directions

1

941 m

Silent Valley Reservoir

Highlight • Viewpoint

Silent Valley Reservoir in the heart of the Mourne Mountains is one of the most beautiful places in Northern Ireland.

Situated in the Mourne Mountains AONB near Kilkeel, Silent Valley Reservoir not only supplies most of the water for County Down and Belfast, but it is also a beautiful spot to visit.

Nestled in the heart of the Mournes between Slieve Binnian and Slieve Muck, Silent Valley lives up to its name as one of the most peaceful and tranquil spots in County Down.

Tip by

2

8.50 km

Mourne Wall

Highlight • Viewpoint

The Mourne Wall is one of the most iconic landmarks of the Mourne Mountains, stretching for 35 kilometers across 15 summits. Built by hand in the early 20th century to enclose the Silent Valley Reservoir catchment area, it’s an impressive feat of craftsmanship and endurance.

Today, hikers crossing its path are struck not only by its scale and history but also by the way it weaves naturally into the dramatic mountain landscape. Following the wall offers some of the best ridge walks in the Mournes, making it both a cultural treasure and a perfect guide for exploring these rugged peaks.

Tip by

3

9.01 km

Slieve Loughshannagh summit

Highlight • Viewpoint

Slieve Loughshannagh is one of the quieter summits in the Mourne Mountains, but it rewards hikers with wide, open views over Silent Valley, Slieve Binnian, and the western Mournes. The climb isn’t too demanding, and the summit has a peaceful, windswept feel, making it a lovely spot to pause and take in the rugged beauty of the landscape.

Tip by

4

10.0 km

Slieve Meelbeg summit

Highlight • Viewpoint

Slieve Meelbeg stands at 716m high and the sixth highest mountain of the Mourne mountain range. From the summit, you can enjoy fantastic views of Bearnagh and Donard.

Tip by

5

11.1 km

Slieve Meelmore summit shelter

Highlight • Historical Site

The Mourne Wall leads to the summit and there, like Slieve Donard, is a tower probably built to give some shelter to the workmen who constructed the wall. Meelmore also has what appears to be an old stonemasons hut at J302285 with plenty of part cut stone on its periphery showing that Meelmore was likely another spot that materials were gathered for the Mourne Wall.

(mourne-mountains.com/mournes/mountains/slieve-meelmore/)

Tip by

6

12.1 km

Slieve Bearnagh

Highlight • Viewpoint

Slieve Bearnagh from the Irish “Sliabh Bearna” meaning “Gapped Mountain” gets its name from its two giant rocky tors and the col lying between them. It is the 4th highest in the range and another 700m+ peak carrying the Mourne Wall with saddles at Pollaphuca to the West and Hares Gap to the East.

It is most accessible starting from the Cecil Newman Car Park and following the Trassey Track up and over Hares Gap, turning right and climbing the steps to meet the Mourne Wall which you follow to both summits. The final climb is steep requiring some hands and knees type scrambling. If doing a circular route descending from the North Tor (680m / J315282) to Pollaphuca is also extremely steep so care is required.

(mourne-mountains.com/mournes/mountains/slieve-bearnagh/)

Tip by

7

13.3 km

Hare's Gap

Highlight • Trail

Hare's Gap is the most beautiful, and dramatic, mountain pass in the whole of the Mournes mountain range. It was once a smugglers hotspot, with people often carrying contraband, such as soaps and spices, through here from the coast along the Brandy Pad.

Tip by

8

17.1 km

The Mourne Wall

Highlight • Monument

Taking almost 20 years to build, the 19-mile (31 km) Mourne Wall runs across the principal summits of the Mourne Mountains. It was built to keep livestock from contaiminating the Silent Valley Reservoir and passes over no less than 15 peaks in the Mournes.

Its perimeter has given rise to the Mourne Wall Challenge where hikers complete a full circuit of the wall, visiting seven of Northern Ireland's ten highest mountains and conquering over 8,000 feet (2,400 metres) of elevation gain.

Tip by

9

17.6 km

Summit of Slieve Donard

Highlight • Natural Monument

Northern Ireland’s highest peak and the pinnacle of the Mourne Mountains, Slieve Donard rises directly from the shore of the Irish Sea. The 19-mile (31 km) Mourne Wall joins a stone tower and the remains of two burial cairns on the summit, from where the Isle of Man, Anglesey, and the West Coast of Scotland can be seen.

Tip by

10

26.3 km

View of the Mourne Mountains

Highlight • Natural Monument

The Morne Mountains rise directly from the flat marshland - some as gentle, meadow-covered slopes, some rugged and rocky, and all of them simply beautiful and impressive.

Translated by Google •

Tip by

11

28.7 km

Slieve Binnian summit

Highlight • Summit

Has to be one of the best summits in the Mournes.
Fantastic views down to silent valley reservoir and south towards Carlingford.
As with any hill walking - be prepared for a change in weather and have good footwear. Enjoy

Tip by

B

34.7 km

End point

Parking

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Way Types & Surfaces

Way Types

26.6 km

3.39 km

1.59 km

1.35 km

1.30 km

543 m

Surfaces

25.5 km

3.43 km

3.39 km

2.40 km

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Elevation

Elevation

Nothing selected – click and drag below to see the stats for a specific part of the route.

Highest point (810 m)

Lowest point (90 m)

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Weather

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Saturday 9 May

12°C

2°C

0 %

Additional weather tips

Max wind speed: 19.0 km/h

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This route was planned by komoot.

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