Welsh 3000s Winter Challenge

Are you up to it? The Fifteen Peaks is known as one of the UK’s toughest fitness challenges, and you’ll be taking it on in winter.

Plas y Brenin

5 Days

Instructor Ratio1:4


Plas y Brenin


5 Days

Instructor Ratio


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If you’re looking for an event to train for, a team bonding experience, or simply a personal goal to achieve; the Fifteen Peaks is the one to sign up for. Join us on this five-day guided traverse, attempting to take in all fifteen of Snowdonia’s highest peaks. You’ll be blown away by the incredible scenery.

If you’re a seasoned summer hillwalker, and new to the winter experience, you’ll get some essential winter skills tuition. And if you’ve already tackled some winter terrain, you’ll be able to develop your capabilities further.

The weather can be unpredictable at this time of year, so we allow plenty of time to organise and take on each day’s activity with this in mind – aiming to conquer all fifteen peaks during your stay.

The Objectives 

  • You’ll take on a personal winter challenge and attempt to summit all fifteen of Snowdonia’s highest peaks.
  • You’ll take in incredible views as you take on a total of 14,000ft of elevation over 30 miles.
  • You’ll gain winter mountaineering skills as you go, becoming more confident in your ability to stay safe in winter.

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What to Expect

The itinerary will depend upon the group and the conditions

We will attempt

1. Snowdon/Yr Wyddfa = 3559 ft (1,085 m)

2. Garnedd Ugain/Crib y Ddysgl = 3494 ft (1,065 m)

3. Crib Goch = 3028 ft (923 m)

4. Elidir Fawr = 3031 ft (924 m)

5. Y Garn = 3106 ft (947 m)

6. Glyder Fawr = 3284 ft (1,001 m)

7. Glyder Fach = 3261 ft (994 m)

8. Tryfan = 3011 ft (918 m)

9. Pen yr Ole Wen = 3208 ft (978 m)

10. Carnedd Dafydd = 3425 ft (1,044 m)

11. Carnedd Llewelyn = 3490 ft (1,064 m)

12. Yr Elen = 3156 ft (962 m)

13. Foel Grach = 3202 ft (976 m)

14. Carnedd Gwenllian = 3038 ft (926 m)

15. Foel-fras = 3090 ft (942 m)

Experience Required

Dependent on the conditions, and with fifteen peaks to conquer, you’ll be using a mix of the following techniques and skills. So, whilst having previous experience of each aspect is not compulsory, you’ll find it beneficial if you’ve had tuition or gained experience of these beforehand:

  • Route navigation and map reading.
  • Ropework techniques.
  • Technical skills for assessing, selecting, and placing suitable belays.
  • Selecting and using specialist winter/ice kit.
  • Skills for emergency situations.

How do I Prepare?

  • You’ll need to be a more advanced, fit and strong hillwalker to take on this course.
  • Use the equipment list and details about our kit hire service, to decide what you’ll need to bring and what you’ll need to hire.
  • If you don’t already have them, purchase personal items like sun block, lip salve to provide protection from UV radiation and the wind.
  • Decide how you want to protect and make waterproof items like your camera and mobile phone.
  • Check and pack basic clothing requirements which you’ll be comfortable to walk, stretch and climb in.
  • Remember layers for warmth. If you have your own winter boots, make sure they are worn in and comfortable.

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Complete any PYB course and receive free BMC membership!

Unlock a mountain of benefits while supporting the future of climbing, hill walking, and mountaineering. As a BMC member, not only will you gain access to incredible perks, but you also be joining a community dedicated to preserving our wild places for generations to come.

Not valid on NGB courses.

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Why Plas y Brenin?

Plas y Brenin is at the forefront of outdoor instruction. Whether you are starting a career in the outdoors, or just want to take an adventure holiday, PYB is the place for you.

We inspire explorers. We train trainers. We’re internationally recognised. We’ve been around since 1798, with our earliest guests including Queen Victoria. Since then, we’ve focussed on providing the best customer experience, working alongside some of the greatest, 007 included.

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Expert Tuition

You’ll receive expert supervision from fully qualified and psyched instructors, creating the perfect environment to learn and enjoy something new!

Our Instructors

Explore Eryri

Your experience will take place in the heart of the extraordinary Eryri National Park. Our National Outdoor Centre features accommodation, a bar, dining, and more. And while you’re here, why not check out some local gems?

Explore Eryri

Develop a Passion

Everyone at Plas y Brenin, from staff to visitors, is excited about adventures and inspired to get outside. Our guests return year after year to experience all that North Wales offers.