Arenig Fawr
Arenig Fawr: Snowdonia’s Forgotten Giant
Arenig Fawr is one of Snowdonia’s most underrated mountains, standing tall at 854 metres and offering some of the most spectacular yet peaceful views in the region. Situated in the central part of Snowdonia, it’s a peak that promises solitude, rugged beauty, and an unforgettable hiking experience. If you’re looking to escape the more crowded trails and find a mountain that feels like your own, Arenig Fawr is the place to be.
A Remote Summit Steeped in Solitude and Story
Arenig Fawr is wild, remote, and beautifully rugged. The mountain dominates the skyline with its rounded summit and steep, rocky flanks, surrounded by heather-clad slopes and scattered boulders. The real magic happens at the top, where you’ll find a memorial to the crew of an American bomber that crashed during World War II. The summit cairn itself is an incredible vantage point, offering sweeping views of Bala Lake, the Berwyn Mountains, and even the peaks of North Wales on a clear day.
One of the best things about Arenig Fawr is the tranquillity. Unlike more popular peaks, you’re likely to have the mountain to yourself, sharing the trails only with the odd wild pony or flock of sheep. It’s a place where you can truly feel the vastness of the landscape and immerse yourself in nature.
Walks & Hikes Around Arenig Fawr
There are a few classic routes up Arenig Fawr, ranging from straightforward climbs to longer ridge walks.
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Arenig Fawr from Llyn Celyn
- 7 mi
- 4 hrs - 6 hrs
The classic route via quarry tracks and a steep south ridge. Rocky near the summit, with sweeping views throughout.
Arenig Fawr via Amnodd Bwll
- 9 mi
- 5 hrs 7 hrs
A remote approach through boggy ground and faint trails. Wild, peaceful, and ideal for solitude.
Arenig Fawr Circular via Arenig Fach
- 12 mi
- 9 hrs
A full-day mountain adventure linking two peaks. Rough terrain and big climbs, best for experienced hikers.
Llyn Arenig Fawr & Summit
- 5 mi
- 3 hrs - 4 hrs
A scenic route to the summit via the tranquil lake. Shorter but steep, with a wild feel throughout.
Arenig Fawr from Capel Celyn Ruins
- 6 mi
- 4 hrs - 5 hrs
A quieter start from the edge of Llyn Celyn, passing the old village site. Gradual ascent with panoramic views.
What to Know Before You Go
Arenig Fawr is remote, and paths can be hard to follow, especially in poor weather. Bring a map (OS Explorer OL18), compass, and plenty of supplies. Sturdy boots are a must as the terrain is rough and often boggy. Due to its isolated nature, the mobile signal is patchy, so plan accordingly.
Why We Love Arenig Fawr
Arenig Fawr feels like a true wilderness experience. The mountain’s untamed beauty, quiet trails, and sweeping views give it a special kind of magic. Whether you’re tracing the rugged ridges or just soaking in the solitude, it’s a place that makes you feel miles away from everyday life. For those who appreciate the wild side of Snowdonia, Arenig Fawr is an unmissable adventure.
How to Get to Arenig Fawr
The main starting point is near Llyn Celyn, located on the A4212 between Bala and Trawsfynydd. Parking is available in lay-bys near the dam (postcode: LL23 7NP). Due to its remote location, there is no direct public transport to the trailhead, so arriving by car is recommended.
A Bit of Arenig Fawr History
Arenig Fawr has a poignant connection to history, marked by a memorial on the summit commemorating the American aircrew who tragically crashed on the mountain in 1943. The site serves as a reminder of the lives lost and adds a reflective touch to an already atmospheric peak.
The name “Arenig” is thought to derive from the Welsh word for “ridge” or “elevated place,” fitting for this imposing mountain. Its rugged landscape and quiet trails make it a favourite for those seeking a bit of solitude among Snowdonia’s many peaks.
Keep exploring
Arenig Fawr is just one of Snowdonia’s wilder peaks. Ready to take on more remote mountains? Check out our guide to off-the-beaten-path adventures in Snowdonia!