Eryri · Gwynedd · Mountain
A short, characterful scramble from Croesor, or a far longer, boggy day from the north. The pyramid you see from Porthmadog is the end of a ridge, not a peak.
A 691 m summit at the end of a ridge in the Moelwynion, above Croesor: the "Matterhorn of Wales" seen from the south-west, and a short Grade-1 scramble up close. What the climb asks of you depends on the line, so read the routes before you read the weather.
Choose your lineChoose your route
The short, classic scramble from Croesor, or the far longer, boggy northern approach from Nantmor, not interchangeable, and only the lower half is waymarked. Pick by length and navigation. The whole board below redraws to your line: its terrain, its shape, its numbers.
Walking routes
Practical brief
The classic line: a wooded lane, the SW ridge, and a short scramble to a false-pyramid summit.
A far longer, committing day from the north: boggy underfoot, serious in mist.
Route figures: no Eryri National Park register exists for Cnicht. Figures are Tier-2 specialist route guides, hedged and checked 24 July 2026. The Croesor circular varies ~10–10.5 km / ~515–576 m of ascent by source. Parking and transport change. Confirm before you go. Official planning source: Eryri National Park · safety and planning advice
Before you go
Parking, transport, toilets, dogs, weather, emergency and descent planning: checked before you go.
Checked 24 July 2026 — confirm before you travel via Eryri National Park — parking (opens in a new tab).
There is no regular bus into Croesor. Plan to drive, and note the single-track approach roads. The nearest railway station is Porthmadog. Beddgelert, on the northern approach, is served by Sherpa’r Wyddfa (opens in a new tab) services S3 and S4; frequency has not been confirmed against a timetable for this guide. Check the current service before relying on a connection.
Cnicht is open upland grazed by sheep, so keep dogs under close control around livestock. On Open Access Land, dogs must be on a lead no more than 2 m long between 1 March and 31 July (the breeding season), and at any time near livestock. No blanket dog ban specific to Cnicht was found for this guide, but a mountain with a scramble step and faint moorland is a serious outing for a dog.
No Eryri National Park route register exists for Cnicht: both lines on this page are assembled from independent, Tier-2 route guides, not an NPA-designated path. The Croesor circular and the long northern approach from Nantmor are genuinely different days, not interchangeable: one is a short, characterful scramble with a good escape track; the other is far longer, boggy, and committing, with route-finding across sometimes pathless ground as the main extra demand.
No summit-specific webcam or ground-condition report exists for Cnicht. Use the forecasts linked above, and treat visibility as the main daily hazard: beyond the summit the paths fade across open, unsheltered moorland.
Cnicht is winter-capable. In snow or ice the short scramble step below the summit and the faint descent paths become serious. Carry an ice axe and crampons and the skills to use them, and judge cornice and avalanche risk from the MWIS Eryri forecast. No equipment mandate specific to Cnicht was found for this guide; treat winter here as a serious undertaking regardless.
The descent is the vague half of the day. On the Croesor circular the old quarry track from Bwlch y Rhosydd is a reliable, graded way down; reversing the ascent ridge is the fallback. The northern approach is a long circuit with few quick escapes.
Beyond the summit the paths fade across boggy moorland, and poor-visibility navigation — not the scramble — is repeatedly flagged as the main hazard. Fix your descent line before you leave the top.
Dial 999 and ask for Police, then Mountain Rescue. Those with hearing or speech needs can text "register" to 999 in advance to set up emergency SMS access. Give your location, what's happened, and how many are in your group.
Aberglaslyn Mountain Rescue Team covers this part of southern Eryri, including the Moelwynion and the Croesor and Aberglaslyn valleys, on call around the clock. Neither start point is a rescue plan. Carry the means to look after yourselves.
No step-free or easy route to the summit exists on either approach: honest, not inferred favourably. A short scramble step, bog and faint paths mean this is not a first-mountain choice unaccompanied, nor a route for anyone wanting a maintained path throughout. There is no shelter, facility or café on Cnicht's summit.
Sourced from Eryri National Park Authority, the Database of British & Irish Hills, Wikipedia and independent route guides, checked 24 July 2026. The name "Cnicht" is thought to derive from English "knight": a folk etymology, not documented history.
The reckoning
You have seen the line and the climb; the last question is the weather. Only the lower half is waymarked: in cloud, the featureless upper ground and the faint paths beyond the summit are a navigation exercise.
The Met Office link is a location forecast named for Cnicht; MWIS and the Met Office mountain forecast are regional mountain forecasts for Eryri/Snowdonia. Read all three together: a location forecast is not a substitute for judging summit wind, cloud, visibility, snow and ice yourself. Valley sun over Porthmadog does not mean a clear ridge. Judge the day by the top, not the car park.
There is no building, café or shelter at the top: just bare rocky outcrops, exposed to whatever the weather is doing.
The short rock step below the summit is greasy and less forgiving in the rain, and the faint paths beyond the top turn to bog.
In mist, finding the line off the summit across featureless moorland matters more than the panorama: this is where people go wrong.
Winter is a different mountain. Cnicht is winter-capable; in snow or ice the summit scramble and the faint descent paths need crampons, an ice axe and the skills to use them. No equipment mandate specific to Cnicht was found for this guide. Treat winter here as a serious undertaking regardless.
The summit
You climb for the view, and on Cnicht it is worth it. The ridge ends at a rocky pedestal over Cwm Croesor, with Tremadog Bay beyond and the Yr Wyddfa range to the north: when the cloud lets you see it.
The defining feature
The summit is the middle of three rocky outcrops at the end of a long ridge: no trig pillar, no shelter, just the rock. It is that abrupt end of the ridge that gives Cnicht its false-pyramid look from below.
Weather permitting
Clear, the pedestal opens across Cwm Croesor to Moelwyn Mawr, out over Tremadog Bay, and north to the Yr Wyddfa range. Cloud closes it to a few metres of wet rock, and makes the ground beyond far harder to read.
Wider summit context
North-east the ground drops to a scatter of moorland lakes — Llyn yr Adar and Llyn y Biswail among them — on the way to the Rhosydd quarries. None of it is a waymarked path; it is where the Croesor circuit's navigation begins.
Why it matters
For all the "Matterhorn" talk, Cnicht is not an isolated summit; the pyramid flattens the moment you stand on it. That matters for the descent: there is no single obvious way off, and the vague half of the day starts here.
Six frames from the mountain: the scramble, the summit outcrops, the moorland lakes, and the slate ruins on the quiet side. Each image is credited in full in the footer.
Every photograph here is credited in full in the footer.
The way down
Beyond the summit the paths fade: the descent is the vague half of the day. Read the notices, then make the call.
Past the top the paths fade across boggy moorland: poor-visibility navigation is the main hazard here, more than the scramble.
There's no shortcut down and no shortcut back. Do not get caught out.
The scramble step is greasy when wet and serious under snow or ice, and the moorland holds cloud. Treat winter conditions seriously.
Neither start point is a rescue plan: Aberglaslyn Mountain Rescue covers this ground on call.
The mountain casts a long day. These are the places around it.
The slate town under the Moelwynion’s eastern side: mine tours underground, and one end of the Ffestiniog Railway.
Read the guide →
The highest of them all, on the northern skyline from Cnicht's ridge.
Read the guide →
A stone village where the Glaslyn and Colwyn meet: the obvious base on the western side of the same hills.
Read the guide →
The Moelwynion’s northern outlier above Capel Curig: a scrambling ridge or a gentler shoulder, whichever the day allows.
Read the guide →On the Atlas
In the Moelwynion above Croesor, the ridge you see from Porthmadog.
Open Cnicht on the mapContinue exploring
Take the quiet of the ridge into the wider landscape.