Welsh Three Peaks Challenge route

Postcodes for the most common parking at each mountain are:

  • Snowdon - LL55 4NY for Pen-y-Pass (Pyg Track route), or LL55 4TY for Llanberis.
  • Cadair Idris - LL36 9AJ, Dôl Idris Car Park.
  • Pen y Fan - LD3 8NL, parking opposite the Storey Arms.

Driving route

The Welsh Three Peaks driving route, north to south, is as follows:

Snowdon to Cadair Idris

Taking approximately an hour and a half.

  • A4086 south from Llanberis through Pen y Pass
  • Left onto A498 through Beddgelert to Aberglaslyn, left over bridge onto A4085
  • At Garreg, left onto B4410
  • At Maentwrog, left onto A487
  • Carry on to A470 past Trawsfynydd down to Dolgellau
  • After Dolgellau, right onto the A487 by the Cross Foxes Inn
  • Left just after the Minffordd Hotel to the Dôl Idris car park

Cadair Idris to Pen y Fan

Taking approximately two hours twenty minutes.

  • A487 south to Machynlleth
  • Left at the town clock and right in the middle of the town onto Forge Road
  • Right at the T-junction onto B4518 to Llanidloes
  • First exit at roundabout in Llanidloes and then right at second, onto A470
  • Through Rhayader, Builth Wells, Brecon, remain on A470
  • At the Storey Arms, parking is either immediately opposite or 200 metres further on the left.