Duathlon  | Adventure Series 2024

Adventure Series 2024 Duathlon Snowman Standard

The second instalment of the Adventure Series, the Snowman Duathlon is not only the toughest event of the Adventure Championships but also known as the toughest event in the UK.

The Snowman encompasses all that the adventure playground of North Wales offers and is infamous for a reason - just when you think you’re done there is a different challenge you’re not expecting. Exciting, adrenaline-fuelled and a truly epic and unforgettable experience.


04 Aug 2024


Llanberis, Plas y Brenin, Newborough Forest


Route Description

This Duathlon is not for the faint-hearted. You get the gruelling challenge of running up Moel Siabod one and a half times! No doubt this is one of the toughest Duathlons that can be undertaken. Your first run will involve ascending up the beautiful rocky paths of Moel Siabod for 2.7km before turning around and running back down again towards the lake to reach transition.

The Snowman Bike route is famous for being one of the best triathlon cycle routes in the World. It takes in most of North Wales' most iconic climbs and routes and is a challenge in its own right. Starting close to the base of Snowdon, flow down the Nant Gwynant Pass and towards Beddgelert. Here you will meet the Glaslyn river cycling alongside the whitewater rapids. Heading over to Maentwrog along the narrow, winding ascents and descents you will then start your climb to Tan y Grisiau, Blaenau Ffestiniog and on up the Crimea pass. The equally steep descent flows down through Dolwyddelan and along the Lledr Valley to Betws Y Coed. From here, you’re almost back, but there is still one last climb up to Capel Curig and the Plas Y Brenin mountain centre.

To complete this race Moel Siabod, the highest peak in the Moelwynion mountain range once again looms ahead. This time you must ascend the full 3.5km to reach the summit at 872m above sea level before turning round to run back down again. To get to the finish turn right and run through the forest one final time before hitting the home straight back towards the lake. The finish line framing Wales' most famous peak Snowdon awaits.


Tier 1 - Adventure Series Standard (Slateman/Snowman/Sandman)

Ends: 08/10/2023

  • £179.98
  • Instalment Plan Available until 1/3/24

Tier 2 - Adventure Series Standard (Slateman/Snowman/Sandman)

Ends: 27/05/2024

  • £204.98
  • Instalment Plan Available until 1/3/24

Tier 3 - Adventure Series Standard (Slateman/Snowman/Sandman)

Ends: 07/06/2024

  • £229.98

Important Information

Minimum Age


Start Time


Cut Off Times

Compulsory Kit


Are you in?

Start List soon

Final Instructions

Will be sent out and available to download 1 week before the event.

We are proud that all our events are bilingual. Signs, registration and commentary are available in English and Welsh.

Event Partners Adventure Series Duathlon 2024

Working with local communities