Last updated September 10, 2026
Croagh Patrick: Climbing Ireland’s Holy Mountain
One of the sacred mountains of the world, ‘the Reek’ rises in a near-perfect cone above the Atlantic in County Mayo. Tradition says Saint Patrick fasted here for forty days, and on Reek Sunday tens of thousands still climb it – some barefoot – in one of the great pilgrimages of the Christian world.
Should You Climb Croagh Patrick?
Yes – it is one of the most rewarding half-days in Ireland, pilgrim or not. Croagh Patrick is a hill climb, not a technical mountain: about 7 km round trip from Murrisk with roughly 700 m of ascent, and no ropes or scrambling.
The one real challenge is the summit cone – a steep pitch of loose, sharp scree that is tiring to climb and slippery to descend. Good boots, poles and a careful pace make all the difference.
You can climb any day of the year, but the mountain’s soul shows most on Reek Sunday, the last Sunday in July, when tens of thousands climb together and Mass is said at the summit chapel.
Ireland’s Holy Mountain
A sacred summit layered over more than a thousand years of tradition.
Forty Days of Fasting on the Summit
Tradition holds that in 441 AD Saint Patrick, Ireland’s patron, fasted and prayed on the summit for the forty days of Lent – and it is from this that the mountain takes its name, Cruach Phadraig, ‘Patrick’s Stack.’ It has been Ireland’s holy mountain ever since.
A Sacred Hill Before Christianity
People gathered on the Reek long before Saint Patrick. The summit shows traces of an ancient hilltop enclosure, and the climb is tied to the older harvest festival of Lughnasa – one sacred tradition layered gently over another.
Ireland’s Great Pilgrim Mountain
Known affectionately as ‘the Reek,’ Croagh Patrick rises 764 m straight out of the Atlantic coast of County Mayo, its near-perfect cone visible for miles across Clew Bay. It is the most climbed and most revered mountain in Ireland.
Reek Sunday & the Barefoot Climb
The custom that makes Croagh Patrick one of the most remarkable pilgrimages in the world.
The Last Sunday in July
On Reek Sunday – Domhnach na Cruaiche – tens of thousands of pilgrims climb the mountain in a single day, and Mass is celebrated in the summit chapel. It is one of the largest annual pilgrimages in the Christian world.
A Tradition of Penance
Some pilgrims climb barefoot as an act of penance, following a custom that goes back centuries. On the loose, sharp scree of the summit cone it is a genuine hardship – and for the devout, that is the point.
A Pilgrimage Any Day
You do not have to wait for Reek Sunday. Pilgrims and walkers climb Croagh Patrick throughout the year, and the summit chapel holds Mass on Reek Sunday and at times through the summer season.
Climb as a Guest
Whether you come as a pilgrim or a hiker, this is a place of prayer for many climbing beside you. Keep the summit quiet and respectful, and give way to those making the climb as devotion.
Clew Bay and Its Islands Spread Out Below the Chapel.
From the little white oratory on the summit, the whole drowned drumlin coastline of Clew Bay opens up – one of the great views in Ireland, weather permitting.
On the Mountain
The path, the scree cone, the summit chapel and the Atlantic weather.
The Pilgrim Path From Murrisk
The standard climb starts at Murrisk on the coast road, following the worn pilgrim path – Casan Phadraig – up the mountain’s shoulder. It is about 7 km round trip with roughly 700 m of ascent.
A Steep, Loose Scree Summit
The final push up the summit cone is the crux: steep, loose, sharp scree that is tiring to ascend and treacherous to descend. Trekking poles and sturdy boots make a real difference here.
A White Chapel Above the Atlantic
At the top stands Saint Patrick’s Oratory, a small white chapel built in 1905, where Mass is said on Reek Sunday. The views over Clew Bay and its scatter of little islands are among the finest in Ireland.
Atlantic Cloud Can Arrive Fast
This is a coastal Atlantic mountain: clear skies can turn to cloud, wind and rain quickly, and the summit is often in mist. Check the forecast, carry layers and be ready to turn back if the cone is dangerous.
How to Climb Croagh Patrick
The Murrisk pilgrim path, stage by stage.
| Stage | What to expect |
|---|---|
| 1. Start at Murrisk | Begin at the coast-road car park by the National Famine Memorial, and follow the worn pilgrim path uphill. |
| 2. The shoulder | A steady climb up the mountain’s shoulder brings you to the saddle, with Clew Bay opening up behind you. |
| 3. The scree cone | The crux: a steep pitch of loose, sharp scree up the final cone. Take it slowly and mind your footing – this is where care matters most. |
| 4. The summit chapel | Reach Saint Patrick’s Oratory at 764 m and the wide Atlantic panorama. Rest, take in Clew Bay, and keep the summit respectful. |
| 5. Descend the cone carefully | Descending the scree is the trickiest part of the day. Poles help; a slow, deliberate pace helps more. |
Base in Westport, Watch the Weather, Respect the Scree.
A night in Westport, a short drive to Murrisk, an eye on the Atlantic forecast, and boots and poles for the cone – the recipe for a good day on the Reek.
When to Go, Getting There & Combining the Journey
Season, base town, lodging and how the Reek fits a wider trip to the west of Ireland.
Late Spring to Early Autumn
May to September gives the most settled weather and long daylight. Reek Sunday (last Sunday in July) is the great pilgrimage day but also the busiest; for a quieter climb, choose a clear weekday.
Via Westport & Murrisk, County Mayo
The trailhead is at Murrisk, about 8 km west of the lively town of Westport in County Mayo. Westport is well connected by road and rail and makes the natural base for the climb.
Base Yourself in Westport
Westport offers plenty of accommodation, food and pubs, and sits on the Wild Atlantic Way. Stay there the night before and drive the short distance to Murrisk for an early start.
The Wild Atlantic Way & Beyond
Pair the Reek with the Wild Atlantic Way coastline, Clew Bay, Achill Island, or the ancient pilgrim path of Tochar Phadraig from Ballintubber Abbey. Hillwalkers can also look east to the peaks of the wider British Isles, from Ben Nevis to the Scottish Highlands.
Sources & Further Reading
Tradition, route and access drawn from the local Croagh Patrick resource, Failte Ireland and County Mayo information, alongside established pilgrimage accounts.
The Official Pilgrimage & Visitor Site
Local information on the pilgrim path, Reek Sunday, safety and the mountain’s heritage. croagh-patrick.com →
Failte Ireland Destination Guide
Ireland’s official tourism resource for Croagh Patrick and County Mayo. discoverireland.ie →
County Mayo Visitor Information
Regional information on Westport, Murrisk and the wider Mayo area. mayo.ie →
What to Bring for an Atlantic Peak
Waterproofs, layers, sturdy boots and poles for the scree matter on this exposed coastal mountain. See our what to pack for your first mountain guide.
Croagh Patrick FAQ
Why is Croagh Patrick sacred?
It is Ireland’s holy mountain. Tradition holds that Saint Patrick fasted and prayed on its summit for the forty days of Lent in 441 AD, and it has been a Christian pilgrimage site ever since – layered over an even older sacred tradition tied to the harvest festival of Lughnasa.
How long does it take to climb Croagh Patrick?
Allow roughly two and a half to four hours for the round trip from Murrisk, depending on fitness and conditions. It is about 7 km with around 700 m of ascent – non-technical, but the loose scree of the summit cone makes it strenuous, especially on the descent.
What is Reek Sunday?
Reek Sunday, the last Sunday in July, is the great annual pilgrimage day on Croagh Patrick, when tens of thousands climb the mountain in a single day and Mass is celebrated in the summit chapel. Some pilgrims climb barefoot as an act of penance.
Is Croagh Patrick hard to climb?
It is a strenuous but non-technical hill climb. The main difficulty is the steep, loose scree of the summit cone, which is tiring on the way up and slippery on the way down. Sturdy boots, poles and Atlantic weather awareness are the keys to a safe climb.
Where do you start the Croagh Patrick climb?
The standard route starts at Murrisk on the coast road, about 8 km west of Westport in County Mayo, where there is a car park and visitor facilities near the National Famine Memorial.
Should I climb Croagh Patrick barefoot?
Only if you understand it as a penitential tradition and accept the risk. The summit scree is sharp and loose, and barefoot climbing causes real injuries every Reek Sunday. Most walkers should wear sturdy boots; the barefoot custom belongs to committed pilgrims.
A Cone of Stone Above the Atlantic, Climbed in Faith for 1,500 Years.
Croagh Patrick joins the great sacred peaks of the world – the mountains climbed as pilgrimage and held holy across the centuries. Explore the full collection, and the reflection behind it.
More Sacred Peaks of the World
Return to the collection hub and the reflection behind it, or explore the other holy mountains below.
Croagh Patrick: One of the World’s Great Pilgrimages
The barefoot Reek Sunday climb is one of Christianity’s great living pilgrimages. Explore the great pilgrimage trails of the world, and the sister sacred peaks below.
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Global Summit Guide is an independent mountaineering resource founded in 2026. The team combines first-hand trekking and climbing experience with in-depth research and professional health and nutrition review to help climbers choose objectives, prepare properly, and stay safe.
Health, altitude, and nutrition content is reviewed by Taylor Ludlow (Registered Nurse) and Brigg Hoopes (Nutritionist).
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