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.
Last updated: April 23, 2026
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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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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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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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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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Carnedd Llewelyn is high and relatively remote, so walks there are quite a serious undertaking.
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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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A fine rocky and in places narrow ridge, and you will often have it all to yourself!
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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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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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