Save the date – July 5th to 12th 2027
150 runners have committed. Join the waitlist today
DAYS
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The Calon Lân 300 is a point-to-point 300-mile ultra celebrating the legendary Cambrian Way – Wales’ mountainous spine. This is a true adventure, with a staggering 74,000 ft of climbing along rugged, remote trails.

Starting in the north and finishing in the south, you’ll traverse epic landscapes, from the towering peaks of Eryri National Park through the wild hills of Mid Wales, and down into the rugged mountains of Bannau Brycheiniog National Park.

You’ll have 7.5 full days (180 hours) to complete the challenge, with checkpoints spaced along the route to rest, refuel, and get ready for the next section of trail.

The event is non-stop, fully supported, with food and drink at aid stations, sleep stations, a skilled medical team, and live tracking so friends and family can follow your journey. Cross the finish line and you’ll earn your Calon Lân finisher buckle – a well-earned badge of honour after 300 miles through the heart of Wales.

Calon Lân 300 has sold out for 2027 – Waitlist now active

We know committing to a 300 miler (who does that) is a big investment of time and energy, and we want to make your experience as rewarding as possible. The entry fee for the Calon Lân 300 is £799.00, and spaces are limited to 150 runners with a further 30 spaces on our waitlist for 2027, so don’t miss your chance to join us in 2027.

Your entry includes:

Race organisers with over a decade of experience in delivering ultra events.

  • Calon Lân belt buckle
  • Calon Lân collectable medal
  • A Calon Lân finisher jacket
  • A Calon Lân collectable map
  • Live tracking for all runners
  • Fully stocked checkpoints
  • Emergency medical cover
  • An experienced, dedicated, and seriously awesome crew

Need some extra information? See below!

Start Location

Cowny

Finish Location

Cardiff

Start and Finish Time

06:00 July 5th – 18:00 July 12th 2027

Elevation Profile

74,000ft

Aid Stations

11 aid stations

Terrain

The Cambrian Way

Calon lân yn llawn daioni!

Sponsors of Calon Lân

Stable Adventures have races from 30 to 300 miles across Wales. Community focussed, with generous cut-offs and great support, there’s an ultra event for everyone.

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