Best mountain passes around Llanfrothen are situated within Eryri (Snowdonia) National Park, an area known for its mountainous landscapes. This region offers a variety of routes, from challenging ascents to scenic viewpoints. The passes provide access to some of Wales' most prominent peaks and historical trails. Llanfrothen serves as a gateway to exploring these significant natural features.
Last updated: August 20, 2026
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Popular around Llanfrothen
O Fon i Fynwy — Exploring Wales on foot from top to bottom
Hike Wales’ silent giants — Southern Eryri (Snowdonia)
Cycling around Llanfrothen
Hiking around Llanfrothen
Running Trails around Llanfrothen
MTB Trails around Llanfrothen
Road Cycling Routes around Llanfrothen
Mountain Hikes around Llanfrothen

Gravel biking around Llanfrothen
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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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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This side of Snowdon is so much quieter😉
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Nice steady climb from the Beddgelert side, kicks up in a couple of sections but nothing too stressful. Well worth a visit
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Great piece of road with dramatic views, a speedy descent toward Llanberis
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Great road surface great climb one of the greatest climbs I've been on. Fast descent worth the views
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For a significant challenge, consider Bwlch y Groes, known as one of the toughest cycle climbs in the UK, with steep inclines and narrow roads. It's also a demanding route for walking or driving. Another challenging option is the Bwlch Main Ridge, which features an exposed, narrow ridge with steep slopes on either side, requiring careful navigation, especially in inclement weather. The routes accessed from Pen-y-Pass, such as the Crib Goch scramble, also offer extreme mountain experiences.
Yes, for a true wild mountain experience away from the crowds, Moelwyn Bach is an excellent choice. It's a large and remote mountain in the Moelwynion range, offering superb views towards the Lleyn Peninsula. Similarly, Cnicht Summit, nicknamed the 'Welsh Matterhorn', is praised by visitors for being less crowded than other popular peaks while still offering wonderful views and a rewarding climb.
The mountain passes in this region offer breathtaking panoramic views. From Bwlch y Groes, you can enjoy stunning vistas across the Dyfi Valley and towards Cadair Idris. Cnicht Summit provides expansive views of the surrounding Moelwynion range, while Moelwyn Bach offers superb views, particularly west towards the Lleyn Peninsula. On a clear day from Moel Siabod (a nearby peak), you can even see 13 of the 14 highest peaks in Wales.
Yes, Pen-y-Pass is a well-known parking area and trailhead, serving as a popular starting point for routes to Yr Wyddfa (Snowdon). However, it's important to note that parking at Pen-y-Pass often requires online booking and payment, and there may be no signal on-site for non-bookers. For other passes, parking availability can vary, so it's advisable to research specific locations beforehand.
The area around Llanfrothen and its mountain passes is ideal for various outdoor activities. You can find numerous running trails, such as the 'Moelwyn Mawr from Croesor trail running loop' or the 'Running loop from Llanfrothen'. For cyclists, there are road cycling routes like 'The Cob Causeway – Abersoch Village and Harbour loop' and gravel biking options including the 'Beddgelert Forest Trail'. You can explore more options on the Running Trails around Llanfrothen, Road Cycling Routes around Llanfrothen, and Gravel biking around Llanfrothen guide pages.
Yes, Bwlch y Groes has significant historical importance. Centuries ago, it was used by pilgrims traveling between north and south Wales, and its name, 'Pass of the Cross,' comes from a cross placed there as a symbol of faith. In the early 20th century, it also served as a crucial testing ground for the British motorcycle and car industries due to its demanding climbs. Pen-y-Pass also has a rich mountaineering heritage, famously associated with George Mallory.
The best time to visit largely depends on your preferred activity and experience level. Spring and autumn generally offer pleasant temperatures and fewer crowds, though weather can be unpredictable. Summer provides the warmest weather and longest daylight hours, but also the busiest trails. Winter hiking is possible but requires appropriate gear and experience due to potentially harsh conditions, including snow and ice on higher passes like Bwlch Main Ridge.
Generally, you do not need permits for hiking on public footpaths and bridleways within Eryri (Snowdonia) National Park. However, some specific activities or events might require permission. Always stick to marked paths and respect private land. For specific routes, especially those involving scrambling or more technical terrain, it's always wise to check local guidelines.
While many mountain passes in the region offer challenging terrain, some routes accessible from trailheads like Pen-y-Pass, such as parts of the Miners' or Pyg Tracks, can be adapted for families with older children or those with some hiking experience. Always check the difficulty and length of a route before setting out with family. The nearby running and walking guides also feature 'easy' and 'moderate' routes that might be suitable for families.
Dogs are generally welcome on most public footpaths and bridleways in Eryri (Snowdonia) National Park, including many mountain passes. However, it is crucial to keep dogs on a lead, especially in areas with livestock or ground-nesting birds, and to clean up after them. Some specific areas or nature reserves might have restrictions, so always look for local signage.
Bwlch Glas Pass is a crucial meeting point for several major hiking paths on Yr Wyddfa (Snowdon). It's where hikers on the Snowdon Ranger, Llanberis Path, Pyg Track, and Miners' Track converge, along with those who have traversed Crib Goch and Garnedd Ugain. The 'finger stone' at Bwlch Glas helps hikers navigate, especially in poor visibility, ensuring they stay on the correct path amidst the many converging routes.
While this guide focuses on the mountain passes themselves, the village of Llanfrothen and nearby towns within Eryri (Snowdonia) National Park offer various amenities. You'll find cafes, pubs, and accommodation options in places like Beddgelert, Betws-y-Coed, and Porthmadog, which are all within reasonable driving distance of the main passes. It's recommended to check local tourism websites or use online search engines for specific establishments.


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