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Ireland

Mayo

The 15 Most Amazing Peaks in Mayo

Mountain peaks in Mayo offer a diverse range of landscapes and experiences within County Mayo, Ireland. The region features prominent coastal mountains, significant spiritual sites, and remote wilderness ranges. These peaks contribute to Mayo's varied topography, providing elevated viewpoints across Clew Bay, the Atlantic coastline, and inland areas. The mountains are integral to the natural and cultural identity of the county.

Best mountain peaks in Mayo

  • The most popular mountain peaks is Croagh Patrick summit, a summit renowned for…

Last updated: April 24, 2026

Croagh Patrick summit

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If you are used to scree fields a short, hassle-free tour. Above it can be very windy and if the clouds are low the view is 10 m, but less tourists / pilgrims.

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Croaghaun

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Croaghaun is a stunning mountain on Achill Island in County Mayo. At 687 metres (2,254 ft), it has the highest sea cliffs in Ireland as well as the third highest …

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Slievemore is the second highest peak on Achill Island after Croaghaun, in County Mayo, Ireland. Its elevation is 671 m (2,201 ft) and it has a trig pointed summit. A …

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Achill Head

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Welcome to one of the best views in Ireland. The views of the cliffs going up to Croaghan are just stunning. In my mine they rival Slieve League and the Cliffs of Moher.

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Leacht Benain (1st Station)

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After the largest part of the ascent follows a flatter piece.

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Nephin

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The climb up to Nephin is well worth the effort, whichever path you take. Enjoy the panoramic view from Ireland's highest standalone mountain.

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Mweelrea

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Magic Mwleerea views await you by the time you get here. Hopefully it hasn't been too wet underfoot for you so you can enjoy this tranquil mountain summit and its grand views out over Killary Harbour.

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At this point you can take a break and admire the surrounding landscape.

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Knockmore summit

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Knockmore has super views out over the sea and towards Clew Bay from its trig pointed summit. There are a variety of routes to the top and the ascent is …

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Knockmore / An Cnoc Mór

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Knockmore, at 462 meters (1,516 ft), is the highest mountain on Clare Island. From here you have a great view over Clew Bay to the east and to the west you can see the seemingly endless Atlantic Ocean.

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Hiking Collection by

Alex Foxfield

Tips from the Community

David Bavin-Hobbs
December 17, 2025, Nephin

The climb up to Nephin is well worth the effort, whichever path you take. Enjoy the panoramic view from Ireland's highest standalone mountain.

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ProteinSnake3000
September 14, 2025, Croaghaun

The summit is relatively easy to climb, but don't be fooled into thinking you can find a way up from the valley floor. The path disappears as soon as you start the ascent. Good mobility is essential to get up there, as there are several small scree sections along the way. The descent, on the other hand, is disastrous. There's no path at all, and you have to traverse a very unpleasant, steep slope through moss and bushes. It's recommended to split the hike if you only want to reach the summit. Start from the car park at Lough Accorymore and don't attempt the circular route to the top. I really advise against doing the circular route; you won't enjoy the hike otherwise, but the view is still worth it. Just follow the route marked at the car park by the lake.

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Finished the tour today and discovered that there's mostly no path there. Anyone who can't navigate the difficult terrain could find themselves in trouble, especially in foggy conditions. The summit plateau has a lot of mud and swampy areas. But it's still a great tour for advanced hikers.

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This is definitely a challenging trail, and should only be done with good weather and a reliable GPS device. There is mostly no trail and some scrambling to get to the top. The ascend is steep and the descend is boggy even when it hasn’t rained for a while. Due to wayfinding plan more time, we did it in five hours including breaks and photo stops.

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Breathtaking heights with great views. Wild, original Ireland.

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David Howells
August 5, 2023, Achill Head

Welcome to one of the best views in Ireland. The views of the cliffs going up to Croaghan are just stunning. In my mine they rival Slieve League and the Cliffs of Moher.

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David Howells
August 3, 2023, Mweelrea

Magic Mwleerea views await you by the time you get here. Hopefully it hasn't been too wet underfoot for you so you can enjoy this tranquil mountain summit and its grand views out over Killary Harbour.

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Knockmore has super views out over the sea and towards Clew Bay from its trig pointed summit. There are a variety of routes to the top and the ascent is generally steep but it is all worth while for the views. There is also a large cairn just to the west of the summit.

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Frequently Asked Questions

Which mountain peaks in Mayo offer the most spectacular views?

For breathtaking vistas, Mweelrea, the highest mountain in Mayo, provides spectacular 360-degree views of Killary Fjord, Connemara, and the Atlantic. Croagh Patrick summit is renowned for its panoramic views of Clew Bay and its numerous islands. On Achill Island, Croaghaun offers views over Ireland's highest sea cliffs, while Achill Head provides stunning perspectives of the cliffs leading up to Croaghaun.

Are there any mountains in Mayo with significant historical or spiritual importance?

Yes, Croagh Patrick summit is Mayo's most famous mountain, known for its strong historical and spiritual significance. It's considered Ireland's holiest mountain, with a pilgrimage tradition dating back over 5,000 years. Saint Patrick is said to have fasted on its summit, and thousands of pilgrims ascend it annually, especially on 'Reek Sunday'.

What are the most challenging mountain climbs in Mayo?

The ascent of Mweelrea is considered a challenging climb due to its wild and rugged terrain, especially in adverse weather. Croaghaun on Achill Island also presents a challenging climb, particularly as the path disappears during the ascent, requiring good mobility and navigation skills through scree sections.

Are there family-friendly mountain walks or easier trails in Mayo?

While many peaks offer challenging routes, the Wild Nephin National Park, home to Nephin, provides various hiking trails, including easier loops suitable for families or those seeking a less strenuous experience. For a coastal walk with stunning views, the 'Erris Head Loop Walk' is an easy option near Belmullet.

What unique natural features can I expect to see in Mayo's mountain ranges?

Mayo's mountains boast diverse natural features. Croaghaun on Achill Island features Ireland's highest sea cliffs. The Nephin Beg Mountain Range, part of Wild Nephin National Park, is celebrated for its unspoiled wilderness and extensive Atlantic blanket bog, one of the largest intact systems in Western Europe. The Sheeffry Hills are characterized by a flat-topped ridge, deeply incised by corries, and several picturesque lakes like Lugacolliwee.

What outdoor activities can I do near Mayo's mountain peaks?

Beyond mountain climbing, Mayo offers a range of outdoor activities. You can find numerous hiking trails, such as the 'Croagh Patrick Pilgrim Path' or the 'Croaghan and Achill Head loop from Keem Bay'. For cycling enthusiasts, there are road cycling routes like the 'Achill Cycle Hub Trail' and gravel biking options such as the 'Great Western Greenway and Furnace Loop'. You can explore more options on the Hiking in Mayo, Road Cycling Routes in Mayo, and Gravel biking in Mayo guide pages.

Is there a mountain in Mayo known for stargazing?

Yes, the Wild Nephin National Park, which encompasses Nephin and the Nephin Beg Range, is recognized as an internationally certified Gold Tier International Dark Sky Park. Its pristine dark skies offer exceptional stargazing opportunities, making it a unique destination for astronomy enthusiasts.

What is the best time to hike the mountain peaks in Mayo?

While Mayo's mountains can be enjoyed year-round, the best time to hike is generally during the drier months from late spring to early autumn (May to September). This period offers longer daylight hours and more stable weather conditions, though caution is always advised, especially on challenging peaks like Mweelrea, where conditions can change rapidly.

What should I wear for mountain hiking in Mayo?

Given the changeable Irish weather, it's crucial to wear appropriate gear. Layers are recommended, including waterproof and windproof outer shells. Sturdy hiking boots with good ankle support are essential, especially for scree fields and uneven terrain found on peaks like Croagh Patrick and Mweelrea. Always carry extra warm clothing, even in summer.

Are there any mountains in Mayo that feature a 'deserted village'?

Yes, Slievemore Summit and Deserted Village on Achill Island offers a unique combination of a mountain climb and a historical site. The slopes of Slievemore are home to a fascinating deserted village, providing a glimpse into past rural life in Mayo.

What do visitors enjoy most about the mountain peaks in Mayo?

Visitors frequently praise the stunning, wild, and original Irish landscapes. Many are captivated by the breathtaking views from summits like Achill Head and the tranquil experience at Mweelrea. The unique blend of natural beauty, spiritual significance, and challenging terrain, as found on Croagh Patrick, also leaves a lasting impression.

Can I find any hidden gem mountain walks in Mayo?

While popular peaks draw crowds, the Sheeffry Hills, with their highest point Barrclashcame (772m), offer a magnificent traverse with 360-degree views of surrounding landscapes including Achill Island and Clew Bay. These walks are known for their stunning scenery and provide an opportunity for a pleasant day's hiking away from the busiest trails.

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