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Tal Y Llyn Swimrun (Cool)

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A lap swimrun course of 4km stunning trail running, and 500m swimming across Tal Y Llyn, in a beautiful part of Snowdonia National Park. Each lap has 200m height gain.  You have 6 hours to complete as many laps as you can.

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How to enter

What's included:

Marked course of 4.1km trail run (200m height gain per lap)
Water safety team on 500m open water swim across Tal Y Llyn
​Aid station every 5.1km with water, electrolyte & nutrition
Swimrun race vest
WESWIMRUN swim hat
Prizes for most laps in shortest amount of time (male, female, mixed, solo)
Race timing (including laps)​
Event photos
Free parking

6hr Swimrun Challenge
Sat 16th Oct 2021

Swim 4km, Run 0.5km

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Running Events in London Parks
Running Events in London Parks
Route description
Route description

Beautiful and challenging trail running on a mix of terrain
Swimming across the stunning glacial ribbon lake of Tal Y Llyn
Hidden waterfalls and fun river crossings, all in the midst of Cadair Idris
There will be prizes for the most laps within 6 hours in the shortest amount of time
An adventurous and fun day out - go all out for the record, or just enjoy swimrunning through this beautiful part of the world

Logistics and schedule


07:30 - 08:30: Registration at The Tyn Y Cornel Hotel
08.45: Route and safety brief
09:00: Start
15.00: Finish
15:30: Prizes (1st Team: male, female, mixed, 1st Solo: male, female)
Prizes: Most complete laps in the shortest amount of time in a maximum of 6 hours.

How to get there

Ty'n y Cornel Hotel, Tal-y-llyn, Tywyn LL36 9AJ, UK

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6hr Swimrun Challenge
Sat 16th Oct 2021

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Tickets on organiser’s site

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