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Cadair Idris by the Minffordd Path

Near Dolgellau, Eryri

Cadair Idris by the Minffordd Path
Photo: Gareth James, via Wikimedia Commons (https://commons.wikimedia.org/wiki/File:View_WNW_from_Penygadair_summit_of_Cadair_Idris_-_geograph.org.uk_-_2509916.jpg), CC BY-SA 2.0 licence, fetched 2026-08-31
Distance
9 km
Ascent
788 m
Time
6 hr
Difficulty
Hard
Summit
893 m
Shape
There and back

Start: Dôl Idris car park, Minffordd

Grid ref: SH 732116

The Minffordd Path is the steepest and most dramatic of the three main paths up Cadair Idris, and the only one of the three that passes Llyn Cau, a glacial corrie lake held in a rock amphitheatre with cliffs falling almost a thousand feet into the water on one side. Local legend calls the lake bottomless and gives it a resident monster; a different, equally old story says anyone who spends a night alone on the mountain’s summit wakes up either mad or a poet. The mountain’s name refers to Idris, said in one telling to be a giant who used the boulders scattered on the lower slopes as ammunition against rival giants, and in another to be a seventh-century prince skilled in poetry, astronomy and philosophy.

Climbing through ancient woodland on stone and timber steps beside a stream, the path reaches Llyn Cau, then follows the rim of Craig Cau around the corrie’s edge to join the summit ridge. The top, Penygadair, is marked by a trig point and a small stone shelter at 893 metres, the highest point of the whole Cadair Idris range.

This is not a walk to underestimate. The National Park Authority and Natural Resources Wales, which manages the surrounding nature reserve, both grade it hard or very strenuous, covering 9 kilometres and 788 metres of ascent there and back, and the upper section is not waymarked, so navigation matters as much as fitness. It suits confident hillwalkers looking for the finest of Cadair Idris’s routes. It does not suit anyone who wants an easy introduction to Welsh mountains, since there is no gentle version of this particular path.

Underfoot

Stone and timber steps through ancient woodland beside a stream up to Llyn Cau, a glacial corrie lake, then along the rim of Craig Cau to the summit ridge.

Stay within reach of the start

Everything here is inside 14 km of Cadair Idris by the Minffordd Path.

Penmaen Cottage

Penmaenpool, near Dolgellau, North Wales

Penmaen Cottage

Sleeps 4 · 2 beds

  • Hot tub
  • Wood burner
  • Dogs

from £670 / week

Check dates

Checked 6 Sept

Minffordd

Penmaenpool, near Dolgellau, North Wales

Minffordd

Sleeps 4 · 2 beds

  • Hot tub
  • Wood burner
  • Dogs

from £698 / week

Check dates

Checked 6 Sept

Capel Coffa

Llanelltyd, near Dolgellau, North Wales

Capel Coffa

Sleeps 8 · 4 beds

  • Hot tub
  • Wood burner
  • Dogs

from £1225 / week

Check dates

Checked 6 Sept

Corner Barn

Arthog, near Fairbourne, North Wales

Corner Barn

Sleeps 6 · 3 beds

  • Hot tub
  • Dogs

from £738 / week

Check dates

Checked 6 Sept

Distances, ascent and times here are planning figures taken from published sources, not a route description to navigate by. Take a map and check the forecast. We do not publish conditions, because nothing on this page is updated often enough for you to trust it on the day.