Circuit of Cwm Eigiau

A classic high level mountain ridge walk around of the skyline of Cwm Eigiau including Carnedd Llewelyn, the highest point of the Carneddau

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Friday 20 June 2025

No dogs allowed

The walk begins at the end of the gated minor road leading to Llyn Eigiau high above the Conwy valley. After a 2km warm up on a level track, the path becomes rougher and less distinct, climbing through heather onto the broad NE ridge of Pen Llithrig y Wrach which we follow to its summit, a fine view point overlooking Llyn Cowlyd.

A steep descent to the bwlch is followed by a further steep ascent to the next summit of Pen yr Helgi Du, another fine view point above Cwm Eigiau. From here the ridge narrows and the next descent has a little exposure and may appear intimiating at first but there are no difficulties and Bwlych Eryi Farchog at the head of Cwm Eigiau is soon gained. The continuation on to Carnedd Llewelyn involves a short scramble up a broad, rocky step before a gradual ascent to summit itself and the high point of the walk.

We then head NE towards Foel Grach for a short distance before turning east to cross a broad, flat area which leads to the final ridge section of the day, Cefn Tal-llyn-Eigiau. A gradual descent brings us to an easy track which leads around the end of the ridge back to the cars.

Terrain:
Rough mountain tracks, sometimes over heather. Some easy scrambling with slight exposure.
Map/Area:
OL17 Snowdon / Conwy Valley, Carneddau
Starting Point:
Parking area at the end of the minor road leading to Cwm Eigiau, GR: SH731663 LL32 8SH
What3Words:
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Walk Starts:
09:19
Walk Finishes:
16:15
Distance:
17km
Ascent:
1020m
Highest Point:
1064m Carnedd Llewelyn

Safety

Let the walk leader know of any relevant medical conditions

Refer to the Handbook for walk related information and specifically for recommended walking equipment and safety information

Remember you are responsible for being properly equipped

Ensure you have the walk leader’s phone number in case of an emergency

If you become detached from the group STOP, call out; try contacting group by phone or text. If no contact return to the last place you were with the group. Wait 30 mins repeatedly trying to make contact. After 30 mins seek help and/or make your own way safely.

The Google map below is the location of the walk start point.