Knockalla Mountains

Overview

The Knockalla Mountains (Cnoc Colbha) dominate the north‑west edge of Donegal’s Fanad Peninsula, reaching 363 m (1,191 ft). Their jagged silhouette – affectionately called The Devil’s Backbone – is a striking line of heather‑strewn ridges, two small summit lakes and cairned peaks that overlook Lough Swilly, the Urris Hills, Fort Dunree and the Blue Flag beach at Ballymastocker Bay. On a clear day the distant outlines of Malin Head and the Atlantic horizon are visible, making the range a magnet for hill‑walkers, photographers and anyone travelling the Wild Atlantic Way.

Landscape & Wildlife

The mountains are classic glaciated Donegal terrain: smooth, rounded summits capped by cairns, interspersed with boggy hollows and hardy heather that turns a vivid purple in late summer. The heather‑covered slopes provide nesting sites for seabirds such as guillemots and razorbills, while the bogs support a range of insects and small mammals. The twin summit lakes – often frozen in winter – attract waders during migration periods. Autumn brings a carpet of heather and a chorus of curlews, making it a rewarding season for wildlife watchers.

History & Background

The ridge has long served as a pilgrimage route. The Way of the Cross climbs the southern slopes, ending at a modest outdoor chapel that offers a quiet place for reflection. Near the main car park stand the historic Knockalla Crosses, ancient spiritual way‑markers that still draw walkers. For centuries the ridge linked the inland villages of Kerrykeel with the coastal hamlet of Shanky, providing a practical corridor for livestock and goods across the peninsula.

What to See & Do

Knockalla Mountain Trail – Short Ascent

Starting at the car park beside the Knockalla Crosses, a brief 250 m stretch of road gives way to an old grass track that climbs steadily through heather. The well‑marked cairn at the summit rewards hikers with a 360° panorama of Lough Swilly, the Urris Hills and the sparkling waters of Ballymastocker Bay.

Knockalla Ridge – The Devil’s Backbone

For a more immersive experience, begin at the lay‑by in Shanky, north of Kerrykeel (grid reference C235 329). The route follows a minor road past Glenvar Church before turning onto a stony track that ascends the ridge. Walkers traverse two main summits, skirt the twin summit lakes, and enjoy continuous sea views of Ballymastocker Bay, Horn Head, Fanad Head and the Atlantic coastline. The ridge is unmarked in places and includes boggy sections, so sturdy hiking boots and trekking poles are advisable. The walk finishes at the Ballymastocker Bay viewpoint (often labelled Ballymastocker Beach Viewpoint on Google Maps), an ideal spot for a photo break before arranging transport back to the start.

Full Ridge Loop – Lakes and Peaks

The longest option combines the Shanky start with the western viewpoint and then returns via the short 2 km trail, creating an 8.37 km loop that circles the summit plateau, passes both alpine‑style lakes and visits the outdoor chapel on the Way of the Cross. This route offers the most varied scenery and a satisfying sense of completion.

Pilgrim Trail & Outdoor Chapel

A short detour from any of the ridge routes leads to the Way of the Cross, a series of stations culminating in a modest chapel perched on the slope. The site provides a peaceful pause amid the wild landscape.

Camping & Facilities

Nestled between the slopes of the Knockalla Mountains and the golden sands of Ballymastocker Bay, Knockalla Caravan & Camping Park is a 4‑star Failte Ireland‑approved site. It operates from mid March to mid September (Camperguru lists 40 pitches from €35). The park offers:

• 50 touring pitches with electric hook‑up and hard‑standing, plus two dedicated tent areas (one with mountain views, one near the play area).
• Amenities – heated toilet block, token‑operated showers (€1), laundry service, gas supply, water points, a fully‑equipped campers’ kitchen, Wi‑Fi, a shop and café (serving homemade scones, apple cake, full Irish breakfasts), a bar, TV/games room, playground, sports courts and a boat launch.
• Contact – Tel: +353 74 915 9108 / +353 749 153 213. Email is available on the park’s website.
• Pet policy – the site is family‑run and welcomes dogs, though owners should keep them under control.

The caravan park provides an excellent base for exploring the ridge walks, swimming or surfing at Ballymastocker Bay, and visiting nearby attractions such as Fort Dunree.

When to Visit

• Summer (June‑August) – Ideal for beach‑goers; Ballymastocker Bay holds Blue Flag status and is popular for swimming, surfing and sunbathing.
• Late Spring (May‑June) – Heather is at its purple peak, and the summit lakes are still clear, offering striking reflections.
• Autumn (September‑October) – Fewer crowds, crisp air and excellent conditions for hill‑walking; the ridge is often dusted with early snow.
• Winter – The ridge can be icy and windy; experienced walkers should be equipped for cold and check weather forecasts.

Getting There

From Letterkenny:

1. Take the R245 to Rathmelton.
2. Continue on the R245 to Milford.
3. Turn right onto the R246 towards Kerrykeel.
4. In Kerrykeel, turn left for Portsalon and at the second crossroads turn right onto the Portsalon/Knockalla coastal road.
5. Follow signs to the car park beside the Knockalla Crosses or the Shanky lay‑by for the longer ridge walk.

Both car parks are free and well‑signposted from the R263. Parking capacity is ample for cars, touring caravans and motorhomes.

Nearby Attractions

• Ballymastocker Bay – Blue Flag beach, voted the second most beautiful beach in the world.
• Fort Dunree – 19th‑century coastal fort with museum and bird‑watching hides.
• Horn Head – dramatic cliffs and a nature reserve popular with seabird watchers.
• Fanad Head Lighthouse – iconic lighthouse with visitor centre.
• Portsalon Village – cafés, craft shops and a small harbour.

Enjoy the rugged beauty, historic pathways and panoramic vistas that make the Knockalla Mountains a standout highlight of Donegal’s Wild Atlantic Way.

Website: https://knockallacaravanpark.com/ (caravan park information)