10 Best Scrambles in Snowdonia (2025)

Cneifion Arete

The connoisseur's choice. Sustained, spectacular, and unknown to most visitors.

Ask a Snowdonia scrambling regular for their favourite route and Cneifion Arete comes up more than any other. It's a sustained Grade 2 scramble on clean, solid rock with fantastic exposure and stunning positions above Cwm Idwal. The route finding is interesting without being impossible, and the quality of scrambling is consistent from bottom to top. It finishes on the Glyderau plateau, giving you a proper mountain day. Less famous than Crib Goch, more sustained than Tryfan, and better rock than either.

Crib Goch

The most famous ridge scramble in Wales — and it deserves every bit of the hype.

Crib Goch is a genuine knife-edge ridge with 300-metre drops on both sides. The scrambling itself is Grade 1 (mostly), but the exposure is Grade 'oh my god.' On a clear day, the traverse of the pinnacles with Glaslyn tarn far below is one of the great mountain experiences in the British Isles. It's not the hardest scramble technically, but the combination of position, exposure, and consequences puts it in a category of its own. People die here every year — respect it.

Tryfan North Ridge

The perfect introduction to scrambling — hands-on from bottom to top on an iconic mountain.

Tryfan's North Ridge is the route that hooks people on scrambling. It's Grade 1 — achievable for most fit walkers willing to use their hands — but it's sustained and varied, with interesting route-finding and a real summit (complete with Adam and Eve jumping stones). The mountain itself is one of the most distinctive in Snowdonia, a rocky pyramid visible for miles. The scrambling starts at the bottom and barely relents to the top.

Bristly Ridge

Tryfan's harder sibling — more technical scrambling with a dramatic headwall finish.

Bristly Ridge climbs from Bwlch Tryfan to the Glyderau plateau via a series of rocky towers and gullies. It's a step up from Tryfan North Ridge — Grade 1/2 with some moves that feel harder in context. The headwall section requires commitment and good route-finding. Often combined with Tryfan North Ridge for the famous 'Cwm Bochlwyd Horseshoe', which gives you two classic scrambles in one day.

Clogwyn y Person Arete

The hardest scramble on this list — a proper Grade 3 with serious consequences. Magnificent.

Clogwyn y Person Arete is the finest Grade 3 scramble in Snowdonia. It takes a striking ridge rising from Upper Cwm Glas to meet the Snowdon Horseshoe at Crib y Ddysgl. The scrambling is sustained, exposed, and technically demanding — some moves are borderline rock climbing. The position is extraordinary, hanging above the Llanberis Pass. This is the pinnacle of Snowdonia scrambling — experienced scramblers only.

Y Gribin

A classic Grade 1 ridge with fantastic views and a proper mountain feel — the gentle giant.

Y Gribin is the Grade 1 scramble for people who want the ridge experience without the terror. It's a broad, rocky spine rising from the back of Cwm Idwal to the Glyderau plateau, with enough scrambling to keep things interesting but enough width to feel secure. The views down to Llyn Idwal are superb throughout. It's the scramble we recommend for people who aren't sure if they like scrambling.

Seniors Ridge (Tryfan Bach)

Not on Tryfan at all — a hidden Grade 1 gem with spectacular views of the big mountain.

While everyone queues for Tryfan, Seniors Ridge on the opposite side of the valley offers excellent Grade 1 scrambling with barely another soul in sight. It's shorter and less committing than Tryfan but the rock is clean and the position — looking directly across at Tryfan's dramatic profile — is arguably better. Often used as a warm-up or teaching route, it deserves recognition as a great scramble in its own right.

Snowdon via Crib y Ddysgl (North Ridge)

Crib Goch's quieter neighbour — a Grade 1 scramble to Snowdon's summit without the knife-edge terror.

If Crib Goch is too scary but you want more than a walking path up Snowdon, the North Ridge of Crib y Ddysgl is the answer. It offers Grade 1 scrambling on the Garnedd Ugain ridge with spectacular views into Cwm Glas and across to Crib Goch. You reach Snowdon's summit via Bwlch Glas, avoiding the knife-edge but still getting genuine scrambling. It's the smart scramblers' route to Snowdon.

Cadair Idris — Cyfrwy Arete

A hidden Grade 2 scramble on Cadair Idris that almost nobody knows about. Exceptional.

Everyone knows Cadair Idris as a walking mountain, but the Cyfrwy Arete offers a genuine Grade 2 scramble on its north face. The route takes a narrow, exposed ridge with steep drops into Llyn y Gadair below. It's quieter than any Ogwen Valley scramble and the sense of exploration — doing something that most guidebooks ignore — adds to the experience. Cadair Idris deserves scrambling recognition alongside the northern peaks.

Pinnacle Route, Cwm Cneifion (Nameless Cwm)

A short, sharp Grade 2 scramble in Snowdonia's most atmospheric cwm.

The Nameless Cwm (Cwm Cneifion) between Y Garn and Glyder Fawr is one of the most atmospheric spots in Snowdonia — dark, enclosed, and studded with rock towers. The Pinnacle Route weaves through these towers on Grade 2 scrambling that's varied and interesting. The approach through Cwm Idwal adds a scenic walk-in. Less well-known than the main Ogwen scrambles, it feels like discovering Snowdonia's back passages.