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North Wales

Gwynedd

The 20 Most Amazing Peaks in Gwynedd

Best mountain peaks in Gwynedd are found within Snowdonia (Eryri) National Park, offering diverse experiences. This region in North Wales is characterized by its majestic and varied mountain landscape. Gwynedd's peaks range from prominent summits to challenging ridges, providing extensive views across the Welsh landscape and coastline. The area is a significant destination for outdoor activities, featuring numerous routes for hiking and climbing.

Best mountain peaks in Gwynedd

  • The most popular mountain peaks is Snowdon Summit (Yr Wyddfa), a summit that is the highest mountain in Wales at 1,085 meters. It offers multiple routes to its summit, catering to various skill levels.
  • Another must-see spot is Penygadair summit, Cadair Idris, a complex and striking summit renowned for its imperious cliffs and enticing ridges. Visitors can expect a challenging climb with varied ascent routes, leading to panoramic views of the Welsh landscape.
  • Visitors also love Carnedd Llewelyn, a natural monument and the second-highest peak in Wales at 1,064 meters. This rugged summit offers views of Llyn Ffynnon Llugwy and provides a wild mountain experience.
  • Gwynedd is known for its high summits, challenging climbs, and scenic viewpoints. The region offers a variety of mountain peaks to explore, from well-trodden paths to more remote and rugged terrain.
  • The mountain peaks in Gwynedd are appreciated by the komoot community, with more than 130 highlights, over 1,100 upvotes, and more than 700 photos shared by users.

Last updated: April 23, 2026

Snowdon Summit (Yr Wyddfa)

Highlight • Summit

Snowdon (Yr Wyddfa) is perhaps the most ascended mountain in the world, and with good reason. This is a majestic mountain, as is befitting of Wales' highest point.

Its glory lies in the myriad routes to the summit. There's everything from the gentle inclines of the Llanberis path to the knife-edged arête of Crib Goch. The south side of the mountain is generally quieter, with the South Ridge in particular a fine route up. The Miners' and Pyg Tracks are straightforward, classic approaches that enter the incredible natural amphitheatre that holds Llyn Llydaw and Glaslyn.

To get the summit to yourself, rise early and avoid peak season.

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Complex and striking, Cadair Idris is the Yr Wyddfa (Snowdon) of southern Eryri (Snowdonia): a honeypot mountain renowned for its imperious cliffs, enticing ridges and pretty tarns. It is a peak shrouded in myth. Its name, meaning ‘Chair of Idris’, derives from the Welsh legend of a giant who created a mountainous seat for stargazing.

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Glyder Fawr summit

Highlight • Summit

The summit of Glyder Fawr is magnificent. On a clear day you will see incredible views of Snowdon, Crib Goch and Garnedd Ugain. At 3,284 feet (1,001 m), it is the highest peak in the Glyderau range.

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Carnedd Dafydd

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After a steep push to the summit, your effort is rewarded with spectacular views over to the Glyderau, Tryfan, Carnedd Llewellyn and Anglesey to the north. At 3,425 feet (1,044 m) high, it's the third highest summit in Wales. However, it is far less visited than the giant of Snowdon, meaning you can experience the wild mountain landscape in more solitude.

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Y Garn Summit

Highlight • Summit

Y Garn of the Glyderau is a mountain of two halves. On one side it drops in continuous green slopes to the pass of Llanberis. On its other it’s a scooped cluster of cliffs, ridges and buttresses, including the scrambling showpiece of Castell y Geifr, all the way to Llyn Idwal in Snowdonia’s most beautiful cwm.

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Carnedd Llewelyn

Highlight • Natural Monument

Carnedd Llewelyn is a rugged and wild summit that boasts incredible views of the lake Ffynnon Llugwn. With bracing mountain air to reinvigorate the senses, this peak is a must-climb on any trip to Snowdonia. At 3,491 feet (1,064 m), Carnedd Llewelyn is the second highest peak in Wales. You can reach the summit of Yr Elen via a ridge from this point, too.

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Crib Goch Ridge

Highlight • Climb

The Crib Goch main ridge scramble is one of the best in the UK. Renowned for hair-raising drops on either side, the thin and rocky ridge is the most challenging of all Snowdon ascents. Nothing else comes close!

As a grade one Scramble, competent hikers should not need ropes to tackle Crib Goch nor find any technical sections beyond their capabilities. A head for heights and a thirst for adventure are a must for this breathtakingly exhilarating section.

If you are hiking - and not mountaineering - DO NOT attempt Crib Goch in winter conditions. It's a full-on winter mountaineering traverse, requiring the correct gear and more technical skills than winter hill walking.

The British Mountaineering Council have some great tips for climbing Crib Goch here: thebmc.co.uk/how-to-scramble-crib-goch

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Elidir Fawr Summit

Highlight • Natural Monument

Another of the big mountains in Snowdonia, if staying in Llanberis i suggest going up this and adding the glyders and tryfan. Asling as the weather is good you will have good views, and many photo oppurtunities, and going up the south ridge of tryfan (a scramble) adds a bit of variety.

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Cnicht Summit

Highlight • Natural Monument

Nicknamed the Welsh Matterhorn, albeit 12,431 feet (3,789 m) lower than its Swiss counterpart, what Cnicht lacks in height it makes up in shapely attractiveness. It is a fantastically pointy, fin-like peak with an irresistible allure. Rising proudly above the hamlet of Croesor, it is the best of the Moelwynion range by far.

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Y Lliwedd

Highlight • Viewpoint

If it were almost anywhere else, twin-peaked Y Lliwedd would be far more celebrated than it is. Forming the bulk of Snowdon’s curved south-eastern ridge, it deserves to be treated as a mountain in its own right, rather than simply a way off its parent. It’s joyfully scrambly, delightfully airy, and spectacularly situated.

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Tips from the Community

Clive G
October 27, 2025, Glyder Fawr Summit

A wonderful spiky summit with fine views to Yr Wyddfa and into Ogwen Valley. The summit itself is a scramble over very large jumbled boulders.

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Clive G
October 27, 2025, Y Garn Summit

Y Garn is a fine hill, usually climbed from Ogwen Valley by it's West ridge, or as part of the walk along the Glyders range between Elidir Fawr and the Glyders themselves. There is however another way up, the East Ridge, which is a Grade 2 scramble and starts from Llyn Idwal.

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Clive G
October 22, 2025, Elidir Fawr Summit

Poor Elidir Fawr! It has been bashed about and big lumps knocked out of it at Dinorwic Quarry, it has had a power station built inside it, and has a reservoir for that reservoir almost at the very top. Fortunately when you climb it from Nant Peris you will only see the reservoir, the rest of the damage is ot of sight.

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Clive G
October 16, 2025, Carnedd Dafydd

A high mountain with reasonable length walk-ins. Good scrambling route on it's north side that gives fine views of the 'Balck Ladders' cliff face.

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Clive G
October 14, 2025, Carnedd Llewelyn

Carnedd Llewelyn is high and relatively remote, so walks there are quite a serious undertaking.

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Clive G
October 12, 2025, Y Lliwedd

Magnificent peak that forms part of the Snowdon Horseshoe. Huge north west facing cliffs and an airy double summit.

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Clive G
August 14, 2025, Cnicht Summit

Rainbows on mountains tend to be a mixed blessing as they are a pretty sure sign that you are about to get wet! However from the photographers point of view they can also signal some great light, with sun mixed in with dark moody clouds. This was the view from near the summit of Cnicht - otherwise sometimes called the Welsh Matterhorn due to its pointy appearance from the village of Croesor. To the right of the picture is Moel Hebog which rises steeply above the pictuesque village of Beddgelert.

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Clive G
August 14, 2025, Cnicht Summit

A fine rocky and in places narrow ridge, and you will often have it all to yourself!

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Frequently Asked Questions

What are some of the most popular mountain peaks to visit in Gwynedd?

Gwynedd is home to many iconic peaks, with Snowdon Summit (Yr Wyddfa) being the highest and most famous in Wales, offering diverse routes for all skill levels. Other popular choices include Penygadair summit, Cadair Idris, known for its striking cliffs and panoramic views, and Carnedd Llewelyn, the second-highest peak, offering a wild and rugged mountain experience.

Are there any easy mountain walks suitable for beginners in Gwynedd?

While many peaks in Gwynedd offer challenging routes, some mountains provide more accessible options. For instance, Snowdon (Yr Wyddfa) has gentler paths like the Llanberis Path. Moel Siabod, though offering a classic climbing experience, is often less crowded than Snowdon and provides diverse landscapes including woodlands and tranquil streams, making it a good option for those seeking a less strenuous ascent with rewarding views.

Which mountains in Gwynedd offer the best climbing and scrambling experiences?

For challenging scrambles and climbing, Crib Goch Ridge is renowned for its knife-edged arête and is a favorite among experienced mountain walkers. It forms a spectacular part of the Snowdon Horseshoe. The Glyderau range, including Glyder Fawr summit, also offers rocky terrain and rewarding ascents popular with climbers.

What are some of the best viewpoints in Gwynedd's mountains?

Many peaks in Gwynedd offer incredible panoramic views. From Snowdon Summit (Yr Wyddfa), on a clear day, you can see across Snowdonia, Anglesey, and even Ireland. Cadair Idris provides breathtaking views of the Welsh landscape and coastline. Cnicht Summit, often called the 'Welsh Matterhorn,' offers stunning views of Yr Wyddfa and the Gwynedd coastline.

What outdoor activities can I do near these mountain peaks in Gwynedd?

Beyond peak bagging, Gwynedd offers a wealth of outdoor activities. You can explore various hiking trails, including the popular Snowdon via Pyg and Miners' Track Loop. For cyclists, there are numerous road cycling routes like the Pen y Pass and Beddgelert loop. Trail runners can enjoy running trails such as the Pyg and Miners Track loop on Yr Wyddfa.

When is the best time to hike in Gwynedd's mountains?

The summer months generally offer the most favorable weather for hiking in Gwynedd, with longer daylight hours and milder temperatures. However, the weather in the mountains, especially on peaks like Snowdon, can change rapidly at any time of year. It's always advisable to check the forecast and be prepared for all conditions, regardless of the season.

What is the second highest mountain in Wales, and what does it offer?

The second highest mountain in Wales is Carnedd Llewelyn, standing at 1,064 meters (3,491 ft). Located in the rugged Carneddau range, it offers a wild and remote mountain experience with incredible views, particularly of Llyn Ffynnon Llugwy. It's a great choice for adventurers seeking bracing mountain air and solitude, and you can even reach the summit of Yr Elen via a ridge from this point.

Are there family-friendly mountain hikes in Gwynedd?

While many of Gwynedd's peaks are challenging, some areas offer more moderate trails suitable for families. For example, Cnicht, despite its iconic pyramid shape, has several moderate trails from the village of Croesor. When planning a family hike, consider routes with less elevation gain and shorter distances, and always check the difficulty ratings and weather conditions.

What unique natural features can I expect to see on Gwynedd's mountain peaks?

Gwynedd's mountains are rich in natural beauty. You'll encounter dramatic geological formations like the tors on Glyder Fawr summit, formed during the Ice Age. Many peaks feature stunning corries and tarns, such as those found around Cadair Idris. The region is also known for its long-lying snow patches on higher peaks and unique flora like the Welsh Poppy, which can withstand harsh elements.

How long does it typically take to climb Snowdon (Yr Wyddfa)?

The time it takes to climb Snowdon (Yr Wyddfa) varies significantly depending on the chosen route and your fitness level. Gentler paths like the Llanberis Path might take 5-7 hours for a round trip, while more challenging routes like the Miners' or Pyg Tracks can be completed in 4-6 hours. The Snowdon Horseshoe, which includes Crib Goch, is a full-day, demanding excursion for experienced hikers.

What is the significance of Elidir Fawr in the Glyderau range?

Elidir Fawr Summit is the northernmost peak in the Glyderau range and is often called the 'Electric Mountain' due to the Dinorwic Power Station located deep within its foundations. Despite extensive quarrying on its western flanks, it remains a compelling mountain with an attractive ridgeline to its pointy summit, offering huge views across Northern Snowdonia and Anglesey.

What makes Carnedd Dafydd a notable peak in Gwynedd?

Carnedd Dafydd, at 3,425 feet (1,044 m), is the third highest summit in Wales. It's part of the great Carneddau ridge, the largest area above 3000ft in Britain south of the Highlands. It offers spectacular views over to the Glyderau, Tryfan, Carnedd Llewelyn, and Anglesey. It's less visited than Snowdon, providing a more solitary experience of the wild mountain landscape.

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