Pen Cwm Silyn Group Walks | Join a Walk
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Elevation
422m
1,384 ft
Prominence
36m
Coordinates
53.0371, -4.2121
SH517511
OS Map
115
Explorer: OL17W 254
The summit features a prominent trig point and a small cairn, making it a perfect spot for triumphantly raising your arms and shouting 'I made it!'
The mountain is primarily composed of volcanic rock, specifically rhyolite, which gives it a unique, rugged appearance. The surrounding area features glacial till and slate deposits, typical of this stunning part of Wales.
Panoramic views of the Llyn Peninsula, Snowdon in the distance, and the dramatic coastline along Cardigan Bay.
The name Pen Cwm Silyn translates to 'Head of the Cwm (Hollow) of Silyn,' reflecting its prominent position in the landscape.
Historically, the area has been important for local agriculture and is steeped in local folklore about the surrounding valleys and hills.
The most popular route starting from the east of the mountain, leading hikers through stunning valleys and eventually up to the summit.
An alternative route that includes a ridge walk starting from the nearby Yr Eifl mountains, offering breathtaking views along the way.
Parking is available at the Cwm Silyn car park, approximately 2 km from the trailhead, with space for around 15 cars.
The nearest bus service is available from Caernarfon, with a limited schedule, so plan ahead if you prefer public transport.
No facilities on the mountain itself, but cafes and public toilets can be found in Penygroes, around a 10-minute drive away.
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Some common questions about the hills answered
Many walkers use Walkmates to join or organise walks with others. You can check for group walks around Pen Cwm Silyn through the maps
Activity varies by location and time, but Walkmates lets you see whether others have shared walks or shown interest in this area. Find other people through the walking friends search walking friends for Pen Cwm Silyn search or of course create your own walk for Pen Cwm Silyn
Yes. If there aren’t any walks listed already, you can create a walk and make it available for others to join.
If you're signed up to Walkmates, you can create a walk to Pen Cwm Silyn.
There are often multiple ways to walk this hill, depending on experience and route preference. Walkmates helps you explore walks and routes that others have shared.
Yes. You can suggest or create routes to share with others. Walkmates focuses on the social side of walking, so routes are used to help people organise walks and explore areas together, rather than as detailed navigation tools or route libraries.
Other uses really appreciate knowledgeable walkers sharing their routes. Share your favourite route to Pen Cwm Silyn here
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Grid Ref: SH517511
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