logo Walking Britain

Snowdonia Walk
A Glyderau trio: Glyder Fach, Glyder Fawr and Tryfan

Nat Park - Snowdonia - Glyders Tryfan

County/Area - Gwynedd & Conwy

Author - Peter Smyly

Length - 6.5 miles / 10.6 km

Ascent - 3150 feet / 955 metres

Time - 6 hours 20 minutes

Grade - mod/hard

Start - OS grid reference SH649603
Lat 53.122704 // Long -4.020341
Postcode LL57 3LZ (approx. location only)
what3words start dogs.cheerily.myself

Walk Route Description

Photo from the walk - A Glyderau trio: Glyder Fach, Glyder Fawr and Tryfan Photo from the walk - A Glyderau trio: Glyder Fach, Glyder Fawr and Tryfan Photo from the walk - A Glyderau trio: Glyder Fach, Glyder Fawr and Tryfan Photo from the walk - A Glyderau trio: Glyder Fach, Glyder Fawr and Tryfan Photo from the walk - A Glyderau trio: Glyder Fach, Glyder Fawr and Tryfan Photo from the walk - A Glyderau trio: Glyder Fach, Glyder Fawr and Tryfan
Click thumbnails for larger images.

In my estimation, the weird and wonderful rock formations of Glyder Fach, Glyder Fawr and Tryfan, along with their altitude, make them rank among la creme de la creme of the Welsh mountains. This walk route includes all three, each of them having the Welsh equivalent of Munro status, that is, they top three thousand feet. For those who like scrambling, there are a number of opportunities during the walk.

A Glyderau trio: Glyder Fach, Glyder Fawr and Tryfan  A Glyderau trio: Glyder Fach, Glyder Fawr and Tryfan  
Click thumbnails for larger images.

This Snowdonia walk starts at Idwal Cottage (grid ref. SH649603) where there is a youth hostel at the head of Llyn Ogwen. A well-constructed footpath leads in less than a mile to the mountain lake of Llyn Idwal, a favourite spot for rock climbers because of the Idwal Slabs at the end of the lake. This route branches off left (grid ref. SH646596) before you get to the Idwal Slabs, about half way along the path to the left of the lake, and follows up a steep, pathless stretch of mountainside to reach the crest of the ridge called Y Gribyn where a clearer path can be found. Tryfan now appears as the backdrop to the view to the west on the other side of the ridge with another wildly situated mountain lake, Llyn Bochlwyd, below, also on your left.

Now follow the upwards ridge ahead, which becomes steeper and rockier in places as height is gained. When the top of the ridge is reached (grid ref. SH650582), the going becomes easier. Glyder Fawr is the first summit to be reached on this walk and is now less than a kilometre to the south west, the top being noticeable for its weird spiky rock formations. If visibility allows, Glyder Fach will be seen along the ridge in the distance along with the Snowdon horseshoe to the south west and the Carneddau to the north east.

After reaching Glyder Fawr you need to retrace your steps along the main ridge path towards Glyder Fach passing the point where you exited from the Gribin ridge. An interesting digression shortly before Glyder Fach is the spiky rock formation known as Castell y Gwynt or Castle of the Winds, off the path to the left. Its scrambling opportunities are an optional extra to the main route.

Glyder Fach is one of the few mountains where the use of both hands and feet is required to reach the very top, the highest of the pile of rocks and boulders being a horizontal rock rather like a miniature bridge. It is also advisable to use hands as well as feet on the way up to the top as this makes it easier to move across the gaps between boulders while minimising the risk of an unpleasant loss of footing. The Cantilever Stone is nearby and is a popular photo stop.

The towering, rocky hulk of Tryfan dominates the view to the left (slightly east of north). From here, it appears to some to be insurmountable; but there is a clear enough path to the top which comes later in the walk. The most direct approach to Tryfan from here, Bristly Ridge, is more easily done in ascent than descent and therefore this route takes the easier option of following the main ridge path down to meet up with the Miners' Track which then leads bears left (grid ref. SH667582), down and up again to Bwlch Tryfan (grid ref. SH661588).

From Bwlch Tryfan, the ascent of Tryfan starts in earnest. There is one point near the summit where there is a "bad step" but many walkers do not even notice it. From the top you can look down on Llyn Ogwen and across to the Carneddau as well as back across to the Glyders and Y Garn.

For the descent route, the easiest way is to reverse the route back down to Bwlch Tryfan where a clear path leads down past Llyn Bochlwyd (sometimes known as Lake Australia because of its shape) and back down to the start point of the walk.

Maps Ordnance Survey Logo Anquet Maps Logo

Ordnance Survey Explorer OL17Sheet Map1:25kBUY
Anquet OS Explorer OL17Digital Map1:25kBUY
Ordnance Survey Landranger 115Sheet Map1:50kBUY
Anquet OS Landranger 115Digital Map1:50kBUY

It is recommended you take a map. The preferred scale is 1:25k.

GPS files - right click or option-click the button and choose "Save As..." to download this file.


Recommended Books & eBooks

Snowdonia: 30 Low-level and easy walks - South

Snowdonia: 30 Low-level and easy walks - SouthGuidebook describing 30 walks in Snowdonia, Wales. Routes are mostly low level and on clear paths and showcase the region's beautiful scenery and rich history and culture. Part of a 2-volume set, this southern volume includes Trawsfynydd, Bala, Dolgellau, Machynlleth, the Harlech Coast and the valleys of the Mawddach and Dyfi.
More information

Great Mountain Days in Snowdonia

Great Mountain Days in SnowdoniaInspirational guidebook to 40 great mountain day walks and scrambles in Snowdonia. Inspirational routes for all abilities across the National Park with routes up Snowdon and Moel Eilio, the Glyderau, the Carneddau, Eifionydd, Siabod and the Moelwynion, Rhinogydd (the Harlech Dome), Migneint and the Arans and Cadair Idris and the Tarrens.
More information

Map and Compass

Map and CompassAn instructive guidebook explaining map and compass techniques, to help readers enhance their outdoor experiences. Whether you are experienced in map-reading, or have never used a compass before, this guidebook will sharpen your skills and have you exploring new areas in no time. There are also tips for GPS and digital mapping technologies.
More information

Social Media

Follow Walking Britain for the latest news.

Facebook Twitter

CBD For Walking & Hiking

Discover the benefits of CBD for walkers and hikers. More info.

Mountain Weather

Stay safe on the mountains with detailed weather forecasts - for iOS devices or for Android devices.

Digital Mapping Guide

Digital Mapping Guide - a simple guide of how to start using digital mapping. Includes advice and useful links.