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Wales

North Wales

Top 20 Mountain Passes in North Wales

Best mountain passes in North Wales are characterized by dramatic landscapes and the majestic Snowdonia National Park. This region offers a diverse range of mountain passes, from iconic routes to challenging climbs. These passes provide access to various outdoor activities and showcase significant geological features. The area's terrain makes it a notable destination for those seeking mountain experiences.

Best mountain passes in North Wales

  • The most popular mountain passes is Pen-y-Pass, a parking area and pivotal location within Snowdonia…

Last updated: April 28, 2026

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, …

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Pen-y-Pass

Highlight • Parking

Right in the heart of northern Eryri (Snowdonia), Pen-y-Pass is superbly located for adventures on the Yr Wyddfa (Snowdon) massif and the Glyderau. It is a popular starting point for …

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Bwlch Glas Pass

Highlight • Natural Monument

The finger stone at Bwlch Glas marks the point at which the Pyg and Miners' Tracks reach the summit ridge and join the Crib Goch, Ranger and Llanberis Paths. Particularly helpful in poor visibility.

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Horseshoe Pass (Bwlch yr Oernant) Climb from Llangollen

Highlight (Segment) • Mountain Pass

At just under 6 km long with an average gradient of 5% and fantastic scenery this climb is really good and rewarding challenge for any cyclist. The first 1.5 km …

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Bwlch Penbarras Climb from Llanbedr-Dyffryn-Clwyd

Highlight (Segment) • Viewpoint

A vicious climb from Llanbedr Dyffryn Clwyd which rises at 12% for 2km. Permanent climbing - and one bite will be sure to take any energy out of the legs.

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Black Road Gravel Pass

Highlight (Segment) • Mountain Pass

This pass is an exceptional ride, particularly when the skies are clear. This gravel trail curves around the western extreme of Cadair Idris, bringing you high above the coast to …

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Bwlch y Groes

Highlight (Segment) • Mountain Pass

The second highest public road mountain pass in Wales this is definitely one to tick off the cycling bucket list. It is narrow and winding so it is recommended to …

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Wayfarer Memorial Traverse

Highlight (Segment) • Historical Site

Following the First World War, there was a renewed interest in cycling for leisure. One of these enthusiasts, Walter MacGregor Robinson, would write about his cycling escapades in the "Cycling" …

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In Aberllefenni, a small road starts that will keep you busy for the next hour. It leads you leisurely, later quite steeply up and up and offers you typical breathtaking …

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Telegraph Valley (Maesgwm)

Highlight (Segment) • Trail

Maesgwm is also known as Telegraph Valley. The trail is gravel and well-made, brilliant to ride and much quieter than the main Llanberis path. It makes a great loop from …

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Tips from the Community

Neil
August 17, 2025, Wayfarer Memorial Traverse

Cheated using the eeb ,but top day out 👌

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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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Beautiful hike, too bad it was cloudy at the top. 12.3 km isn't the actual distance you'll be hiking: it's definitely 10 km more because you can't walk a straight line on this path. It's very busy on this trail; there's a queue to reach the top.

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Crazy hiking all the way up and then seeing a train pass you on the final section!

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Juliane
June 24, 2025, Pen-y-Pass

If you want to park here, you have to reserve a parking space in advance for 20 GBP. We didn't manage to do it, as everything was fully booked. You can then park in Llanberies and take the Sherpa Bus S1 or S2 to Pen y Pass. The bus runs every half hour. From Pen y Pass, you can then choose the Miner's Track or Pyg Track. Have fun!

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Bumble-Bee
June 23, 2025, Pen-y-Pass

Currently parking is pre-booking only! All others are directed to the P+R in the village and need to get up by bus or walk.

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Savage climb for which I’d recommend at least a 32t on rear. Oh and not doing it on a loaded bike😫 But what a view! And very few cars. Always a bonus. Relatively narrow tarmac. Bit gravelly nearer the bottom but gets smooth and dry once above the trees.

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Frequently Asked Questions

What are some challenging mountain passes for cyclists in North Wales?

North Wales offers several challenging passes for cyclists. Horseshoe Pass (Bwlch yr Oernant) is known for its 6 km climb with an average gradient of 5%. Another formidable climb is Bwlch y Groes, sometimes called "Hellfire Pass," which features gradients up to 25%. Bwlch Penbarras also presents a vicious climb from Llanbedr Dyffryn Clwyd, with sections reaching 25%.

Are there any family-friendly mountain passes or walks in North Wales?

Yes, several areas around the mountain passes are suitable for families. While the passes themselves can be rugged, locations like Nant Gwynant Pass offer serene environments with picturesque lakes such as Llyn Gwynant and Llyn Dinas, ideal for gentle walks and watersports. Pen-y-Pass, while a starting point for challenging routes, also provides easy access to scenic views and a youth hostel with amenities, making it a good base for families to explore the lower sections of trails like the Miners' Track.

Where can I find the best viewpoints along North Wales mountain passes?

Many passes offer stunning panoramic views. Pen-y-Pass, situated at the highest point of Llanberis Pass, provides expansive views of surrounding peaks and valleys. Bwlch y Groes offers dramatic scenery and views across the Dyfi Valley, Cadair Idris, and Aran Fawddwy. The Llanberis Pass itself, particularly when descending towards Llanberis, offers spectacular mountain scenery. Nant Gwynant Pass provides beautiful views of Snowdon's peaks alongside its lakes.

What historical or cultural significance do some of these passes hold?

The mountain passes of North Wales are rich in history. Pen-y-Pass, for instance, has a significant mountaineering heritage, famously serving as a training base for Sir John Hunt's 1953 Everest expedition team. The former Gorphwysfa Hotel there, now a YHA youth hostel, was also a haunt of George Mallory. Nant Gwynant Pass contains historic sites like Hafod Lwyfog, dating back to the 1540s. Bwlch y Groes was historically part of a pilgrim route.

What outdoor activities can I do near the mountain passes in North Wales?

The region around North Wales' mountain passes is a hub for outdoor activities. You can find numerous hiking opportunities, including challenging routes up Yr Wyddfa (Snowdon) from Pen-y-Pass, or scenic walks along the Fisherman's Path in Aberglaslyn Pass. For cyclists, passes like Horseshoe Pass offer rewarding climbs. Watersports like windsurfing and canoeing are popular on Llyn Gwynant in Nant Gwynant Pass. For more detailed routes, explore guides like Hiking in North Wales or Gravel biking in North Wales.

Are there specific parking considerations for popular passes like Pen-y-Pass?

Yes, parking at popular locations like Pen-y-Pass requires pre-booking during peak seasons due to high demand. It's advisable to check the Snowdonia National Park website for the latest information on parking availability and booking requirements. The Sherpa bus service provides a convenient alternative for accessing these busy areas, helping to reduce congestion.

What natural features can I expect to see when visiting these passes?

North Wales' mountain passes are characterized by dramatic natural beauty. Llanberis Pass features a narrow, steep-sided valley with rocky crags and boulders, creating a rugged landscape. Nant Gwynant Pass showcases deep glacial valleys, the Afon Glaslyn river, and picturesque lakes like Llyn Gwynant and Llyn Dinas. Aberglaslyn Pass is a narrow, wooded gorge where the Afon Glaslyn river tumbles through dramatic scenery and numerous waterfalls. You'll also encounter expansive views, steep slopes, and unique rock formations across the region.

What is the best time of year to visit the mountain passes in North Wales?

The best time to visit is generally from late spring to early autumn (May to October) when the weather is milder and more stable, making conditions ideal for hiking, cycling, and scenic drives. During these months, you'll experience longer daylight hours and the full beauty of the landscapes. Winter can offer dramatic, snow-covered scenery, but conditions can be challenging and require appropriate gear and experience, especially on higher passes like Bwlch y Groes or exposed ridges like Bwlch Main Ridge.

Are there any cafes or amenities available near the mountain passes?

Yes, amenities are available, particularly near the more popular passes. At Pen-y-Pass, the YHA youth hostel offers a bar and café, and there's an information centre. The village of Llanberis, at the foot of Llanberis Pass, has various cafes and facilities. For cyclists tackling Horseshoe Pass, The Ponderosa Cafe at the summit is a popular stop. Beddgelert, near Nant Gwynant and Aberglaslyn Passes, also provides options for refreshments.

What is the Bwlch Main Ridge and what makes it notable?

Bwlch Main Ridge is an exposed ridge that connects the upper slopes of the Rhyd Ddu Path to the Snowdon summit. It's notable for its narrow crest and steep drops on either side, offering a dramatic and challenging alpine-like section for experienced hikers. While not overly difficult, its exposure requires caution, especially in windy or inclement weather. It's a highlight for those seeking a more exhilarating mountain experience.

Can I find any less-known or 'hidden gem' mountain passes in North Wales?

While many passes are well-known, exploring areas slightly off the main tourist routes can reveal quieter spots. Bwlch y Groes, despite its challenging reputation, is in a more remote location compared to the Snowdonia honeypots, offering a true mountain experience with expansive views away from the crowds. Similarly, exploring the minor roads connecting to passes like Bwlch Penbarras can lead to quieter, yet equally stunning, landscapes.

What is the significance of Llanberis Pass?

Llanberis Pass (Bwlch Llanberis) is an iconic route in North Wales, traversed by the A4086 road between the Snowdon and Glyderau mountain ranges. It's characterized by a rugged, almost lunar-like landscape with rocky crags. It's a gateway to adventure, particularly popular with rock climbers due to renowned crags like Dinas y Gromlech and the 'Three Cliffs.' Driving through the pass offers spectacular views, and it provides easy access to various outdoor activities and the village of Llanberis.

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