How Hard Is The Welsh Three Peaks Challenge?

How Hard Is The Welsh Three Peaks Challenge?

The Welsh Three Peaks is a demanding mountain challenge that sits between the Yorkshire Three Peaks and the National Three Peaks in difficulty. Here's what to expect.

The Numbers

  • 17 miles of mountain walking (27km)
  • 2,334 metres of total ascent (7,657ft)
  • Three peaks: Snowdon, Cadair Idris, and Pen y Fan
  • Driving between peaks through Mid and North Wales
  • Typically completed in 24 hours

How Does It Compare?

Challenge Distance Ascent Time Target
Welsh Three Peaks 17 miles 2,334m 24 hours
National Three Peaks 23 miles 3,064m 24 hours
Yorkshire Three Peaks 24 miles 1,585m 12 hours
Surrey Three Peaks 23 miles 1,060m 10-12 hours

The Welsh Three Peaks has less distance than the National but still substantial ascent. The shorter walking distances make it more manageable, though Cadair Idris in particular is a serious mountain.

What Makes It Challenging?

The Ascent

Over 2,300 metres of climbing across three distinct mountains. Each peak involves a complete ascent and descent before driving to the next - there's no gradual build-up.

Cadair Idris

Often tackled at night, Cadair Idris is the most technical of the three. The Minffordd Path is steep and rocky, requiring good navigation in darkness.

Night Walking

Most itineraries include walking in darkness. The combination of tiredness, unfamiliar terrain and limited visibility makes navigation challenging.

Welsh Weather

All three mountains are exposed to Atlantic weather systems. Cloud, rain and wind are common even in summer, and conditions at the summit differ significantly from the valleys.

Fitness Level Required

You should be able to:

  • Walk 12-15 miles on hilly terrain comfortably
  • Climb a mountain like Snowdon without struggling
  • Handle rough, rocky ground
  • Keep going when tired

If you regularly walk in hilly areas, 6-8 weeks of specific preparation should be sufficient. For those starting from a lower fitness base, allow 3-4 months. See our training guide for advice.

The Three Peaks

Pen y Fan (886m)

Usually tackled first. A relatively straightforward ascent via the Pony Track, though the final section is steep. Good warm-up for what follows.

Cadair Idris (893m)

The most demanding of the three. The Minffordd Path involves sustained climbing with rocky sections. Often done in darkness, adding to the challenge.

Snowdon / Yr Wyddfa (1,085m)

The highest peak, tackled last when you're tired. Multiple route options - the Llanberis Path is longest but most gradual, while the Pyg Track is shorter but steeper.

Can I Do It?

If you can answer yes to these questions:

  • Can you walk 10+ miles in a day on hilly terrain?
  • Are you prepared to train for 6-8 weeks?
  • Can you handle being tired and uncomfortable?
  • Do you have suitable kit?

Then yes, you can do the Welsh Three Peaks. It's a proper challenge, but thousands complete it each year.

Ready to Take It On?

Book a Guided Challenge View Training Guide Plan Your Own