Mamore Gap and St Eigne’s Holy Well

📍 Inishowen Peninsula, Donegal

🏛️ Attraction

Last updated: 27 May 2026

Overview

Mamore Gap (Irish: An Mám Mór) is a narrow, winding mountain pass that climbs to roughly 800 ft (240 m) above sea level on the Inishowen Peninsula. The route forms a dramatic ascent from the south and a steep, rewarding descent toward the Atlantic coast, making it a standout feature for drivers and walkers alike. From the summit car park, the landscape opens into a natural amphitheatre of cliffs, rolling hills, and the Fanad Peninsula, with the ocean stretching to the horizon on clear days.

The Drive & The ‘Magic Road’

The approach from the Urris valley is tight and demanding, with gradients that can reach 30% and several sharp bends. Drivers should take their time, especially in wet or windy conditions. On the descent toward the coast, you’ll encounter the locally famous “magic road.” A section of the carriageway is surfaced with pale, white stone that creates a compelling optical illusion. If you stop your vehicle and put it in neutral, it will appear to roll uphill against gravity. It’s a simple trick of perspective caused by the surrounding topography, but it never fails to draw a smile from visitors. The route has long been a favourite among cyclists and motorcyclists seeking a genuine test of skill, though the narrow width means regular traffic should always yield to slower-moving bikes.

St Eigne’s Holy Well & Pilgrimage Tradition

Just beside the summit car park sits St Eigne’s Holy Well, a stone-lined spring dedicated to an early Celtic saint associated with the Céile Dé monastic order. During the Penal era, when Catholic worship was heavily restricted, the remote location of the gap made it an ideal spot for clandestine Masses. The tradition of pilgrimage continues to this day. Every 15 August, on the Feast of the Assumption, locals and visitors gather for an open-air service. Many devotees walk the final stretch barefoot as an act of penance and devotion. A small grotto dedicated to the Virgin Mother and a modest altar to St Padre Pio sit nearby, often decorated with fresh flowers, rosaries, and votive candles left by visitors seeking healing or offering thanks.

Walking & Viewpoints

While the drive is the main attraction, the gap offers excellent walking opportunities. A clear path leads from the car park up to the holy well and continues along the ridge, rewarding hikers with unobstructed views of the Atlantic coastline and the Inishowen headlands. The lower car park, situated further down the descent, provides another excellent vantage point where the road curves sharply against a backdrop of sea and sky. For those seeking a quieter perspective, the slopes of Mamore Hill offer closer access to the cliff edges, though caution is essential due to loose stone and steep drops. Weather in Donegal can change rapidly, so sturdy footwear and a waterproof layer are essential, even in summer.

Practical Information

  • Access & Parking: The gap is open to the public year-round. Free parking is available at both the summit and lower car parks. Dogs are welcome but should be kept on a lead near the cliff edges and around the holy well.
  • Best Time to Visit: Late spring through early autumn typically offers the clearest skies and most comfortable driving conditions. If you plan to attend the annual pilgrimage, mid-August is the time to go, though expect higher traffic and limited parking.
  • Facilities: There is no entry fee. Basic parking and an information board are available at the summit. There are no toilets, shops, or food outlets on-site, so plan accordingly before you set off.
  • Safety: The road is not suitable for large coaches or caravans. Drivers unfamiliar with narrow, single-track mountain passes should proceed with care. Always check tide and weather forecasts before exploring the coastal paths.

Nearby Attractions

Mamore Gap sits on the edge of one of Donegal’s most scenic loops. If you have time to extend your drive, consider heading to:

  • Barnesmore Gap – another dramatic mountain pass with sweeping views across the Bluestack Mountains and Letterkenny.
  • Assaroe – home to medieval abbey ruins, a tranquil lake, and a series of waterfalls set in a peaceful woodland valley.
  • Ballymastocker Bay – a Blue Flag beach just down the coast, known for its golden sands, calm waters, and excellent surfing conditions.

The combination of steep gradients, coastal panoramas and centuries of quiet devotion makes Mamore Gap a stop that rewards patience. Pull over at the summit, step out of the car, and let the Atlantic wind clear your head before navigating the final descent.