Triathlon | Snowman 2021

Snowman 2021 Triathlon Standard


01 Aug 2021


Plas y Brenin, Snowdonia


Route Description

Begin with a swim in the freshwaters of Llyn Mymbyr under the watchful eye of Snowdon. Exit the water and cross the wooden foot bridge for the first time in to 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 it's 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 you must make the climb up to Capel Curig and the Plas Y Brenin mountain centre before you reach transition.

There is a reason that the Snowman Triathlon regularly gets called the toughest multi terrain triathlon in the UK. That’s because to complete this race you must first summit a mountain; Moel Siabod, the highest peak in the Moelwynion mountain range. Ascend up 3.5km of beautiful rocky paths before reaching the summit at 872m above sea level and turning round to run back down again. To get to the finish you must turn right and run through the forest, then back along the fire road towards the lake. The finish line framing Wales' most famous peak Snowdon awaits.








Important Information

Minimum Age


Wave Start Times


Cut Off Times


covid-19 information

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Final Instructions

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

We are proud that all our events are bi-lingual. Signage, registration and commentary is available in both English and Welsh.

Event Partners Snowman Triathlon 2021


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