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The Snowdon Coast to Coast Challenge

By Dave Roberts   

on February 5, 2015    5/5 (1)

The Snowdon Coast to Coast Challenge

Further Details

Route Summary:

Route Start Location:

44.57 km 2216 m

Calculate the time using Naismith’s Rule and factor in your own pace.

Activivity Type: Epic Walk

Summits and Places on this Route


Check out the businesses nearby for more places to stay and drink.


Remember that we cannot outline every single hazard on a walk – it’s up to you to be safe and competent. Read up on Mountain Safety , Navigation and what equipment you’ll need.

Parking :

Public Transport:

Traveline for UK Public Transport

Recommended Maps


Weather Forecast:

Met Office Snowdonia Mountain Weather

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The Snowdon Coast to Coast Challenge Ordnance Survey Map and GPX File Download

Download file for GPS

The Snowdon Coast to Coast Challenge

Here’s a realistic challenge that won’t leave you feeling like you’ve fallen down three flights of stairs for the following week.

Coast to coast challenges have a special appeal to them, as do the highest points. Combine them and you’ve got the Snowdon Coast to Coast from Caernarfon to Penrhyndeudraeth (or continue onwards to Porthmadog, returning to the start via the WHR). The best thing about this is that the peaks left over from the Snowdon range are Lliwedd and Crib Goch, ripe for the climbing by completing the classic Snowdon Horseshoe!

OS Map Required Explorer 017BMC MapLandranger 115

The route starts at sea level in Caernarfon, before following the Lon Gwyfai to Bwlch y Groes, just above Llanberis.


The route then follows the Moel Eilio ridge over towards the Snowdon Ranger, and the summit of Snowdon.



Descending the South Ridge, you’ve a final ascent over Yr Aran, before descending the wild Cwm yr Hyrddod to Beddgelert.


Finish with a punishing, and undulating 16km to the end, down the Aberglaslyn pass, over to Croeseor and finally down via the cool forests to Penrhyndeudraeth.



Dave Roberts founded Walk Eryri in 2004, with the aim of providing routes that are off the beaten track. Walk Eryri is now part of Mud and Routes which continues to provide more off beat routes and walks in Snowdonia and beyond. Dave has been exploring the hills of Eryri for over thirty years, and is a qualified Mountain Leader. Dave also established Walk up Snowdon, Walk up Scafell Pike and Walk up Ben Nevis just to mention a few.
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