Croagh Patrick (764 m) is a quartzite peak on the south shore of Clew Bay in County Mayo, rising dramatically from the coastal plain. The mountain has been a site of pilgrimage for over 1,500 years. According to tradition, St Patrick fasted on the summit for 40 days in 441 AD and used the location to drive snakes — a metaphor for pagan religion — from Ireland. The summit chapel was built in 1905 and a resident priest still says Mass there on the annual pilgrimage day.
Reek Sunday — the last Sunday in July — draws 25,000 to 30,000 pilgrims to climb the mountain, some of them barefoot, in a tradition of voluntary penance. The mass ascent begins before dawn and continues all day. Outside pilgrimage season, the mountain has regular walking traffic and is one of the most popular peak ascents in the west of Ireland.
The views from the summit are exceptional on a clear day — Clew Bay below with its 365 islands, the Partry Mountains, the Nephin Beg range and, on the clearest days, the Aran Islands. The standard route from the car park at Murrisk takes 1.5 hours ascent, 1 hour descent. The upper section is steep quartzite scree that requires care and appropriate footwear.
Highlights
- Ireland's most sacred mountain — pilgrimage site since St Patrick's 441 AD fast; the tradition continues today
- Reek Sunday (last Sunday July) — 25,000–30,000 pilgrims climb, some barefoot; one of Europe's largest pilgrimages
- Clew Bay from the summit — 365 islands in the bay below, the Partry Mountains behind, Atlantic to the west
- The quartzite scree ascent — the upper section is technically undemanding but requires proper footwear and some effort
- Summit chapel (1905) — a working place of worship with Mass said on pilgrimage day and prayer services throughout summer
Good to know
- →Avoid Reek Sunday unless you specifically want the pilgrimage experience — 25,000 people on one mountain is intense.
- →Wear proper walking boots — the upper section is loose quartzite scree and ankles are at risk in trainers.
- →The car park at Murrisk charges a small fee. Arrive early on summer weekends to get a space.
- →Westport (10 km) is the best base — a well-run market town with good accommodation and excellent restaurants.
- →Allow 2.5–3.5 hours for the full round trip in normal conditions. Weather changes fast — bring a layer.
Best Time to Visit
Jun–Sep for the summit ascent; Reek Sunday (last Sunday of July) if you want the pilgrimage experience with 25,000 climbers. Sep–Oct for fewer people and clearer views over Clew Bay. Avoid winter — ice and exposed quartzite scree make it genuinely dangerous.
Getting There
Common questions
How difficult is the climb up Croagh Patrick?
The standard ascent from Murrisk (where the car park and statue are) takes 2–3 hours to the summit and 1.5–2 hours down — about 4–5 hours return for most walkers. The upper section is very loose quartzite scree, which is hard on the knees descending. A walking pole is strongly recommended. Good boots are essential — the route is exposed and the scree is hazardous in wet conditions.
When is the Croagh Patrick pilgrimage day?
Reek Sunday — the last Sunday of July each year — sees up to 25,000 pilgrims climb the mountain, many barefoot as a traditional act of penance. Mass is said at the summit chapel throughout the day. It is an extraordinary and moving spectacle. If you want a quieter climb, avoid Reek Sunday entirely — the summit path is a slow-moving human traffic jam on that day.
Is there anything at the summit of Croagh Patrick?
A small modern chapel (built 1905) stands at the summit, staffed by a resident chaplain on Reek Sunday. A resident priest says Mass at the summit on the pilgrimage day. The views over Clew Bay — with its 365 islands (one for every day of the year, according to local tradition) — are exceptional on a clear day and are the main reward for the climb.
How far is Croagh Patrick from Westport?
The main car park at Murrisk is about 8km from Westport town — about 12 minutes by car. Westport is the natural base for Croagh Patrick, with a wide range of accommodation and restaurants. The mountain is also clearly visible from the town itself, a constant presence above the bay.
Where to Stay
Nearby Attractions
Planning your visit
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Quick Facts
- Type
- Nature
- County
- Co. Mayo
- Province
- Connacht
- Entry
- Free
- Hours
- Year-round (weather dependent)
- Allow
- 3–4 hours round trip
Destination guide
Mayo & Achill Island
Itinerary, best stops and local tips for Mayo · Ireland.
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