The Brutal Extreme Triathlons Full, Half and Double Iron

Date & Location

Llanberis, North Wales

Organiser’s Description

One of the hardest triathlons n the World. The swim in Lake Padarn will be the easiest part of your day! The challenging bike course involves stunning scenery and brutal hills. You'll then run an undulating trail around the lake, then and up and down Snowdon, the highest mountain in Wales. This is a super tough triathlon, but it's renowned for its massive support, not only from the event crew, but other competitors too. 19-21 September.


  • Half Iron 1900m swim
  • 90 km cycle
  • 24 km run
  • Full Iron: 3800m swim
  • 180 km cycle
  • 42 km run
  • Double Iron: 7600m swim
  • 360 km cycle
  • 80 km run
  • Triathlon
  • Half Ironman / 70.3
  • Ironman
  • Half Ironman to Ironman
  • Lake
  • Road
  • Trail
  • Extreme
  • Mountain

Added By

  • Find A Race Find A Race
    United Kingdom

who's in?

Create your free profile to see what events your friends are doing

sign up / log in

kit stop

Some of the smaller (and not-so-small) brands making good stuff for events like this:

submit an event