The Glyderau is a group of 11 mountains in the Ogwen Valley, part of Snowdonia National Park in North Wales and formed by the last ice age.

Starting in Llandegai and ending in Capel Curig, the Glyderau’s mountains are Elidir Fawr, Carnedd Y Filiast, Mynydd Perfydd, Foel Goch, Y Garn, Glyder Fawr, Glyder Fach, Tryfan, Y Foel Goch, Gallt Yr Ogof and finally Cefn Y Capel.

To many people the word Glyderau specifically refers to the highest peaks in the range, namely Glyder Fawr and Glyder Fach. Bridged by Castell Y Gwant and Y Gribin ridge, these two mountains dominate the landscape for miles around – their name derives from the Welsh word “Cludair”, aptly translated as “a heap of stones”.

Most commonly accessed from Ogwen Valley car park, both Glyder Fawr & Fach are enormously popular with walkers, runners and climbers.

Free Glyderau Trail Routes

This website contains free trail routes for a number of our favourite ways to wander around the Glyderau. These route guides are primarily a record of places we’ve visited often and know extremely well. We advise all site visitors to conduct significant further research before following in our footsteps.

Bristly Ridge & Y Gribin

A monster "up and down" route, only gets better with time and repeat visits. This route takes in both Glyder Fach and Castell Y Gwant, including the tourist photo spot of the "cantilever stone", but that all pales into insignificance compared to the fun to be had on the ascent and descent routes. Read More about Bristly Ridge...

Devils Kitchen & Y Garn

A true classic Snowdonia short walk, this magical path snakes through the boulders of Glyder Fawr alongside a waterfall before the crowning glory of Y Garn's 360 degree views. Read More about Y Garn...

Gallt Yr Ogof

Wet and boggy hillwalking, not the most impressive mountain summit, a horrendously slippy gully to ascend... but possibly the best sunset silhouette view of Tryfan one could imagine. Read More about Gallt Yr Ogof...

Llyn Idwal & Llyn Ogwen Walks

Nice and easy wander, great with family and friends on a nice hot summer's day. Read more in our Guide To Ogwen Valley.

West Side Summits

Monster 11 mile hike taking in all the Glyderau peaks along the Nant Ffrancon valley side. Views for days and some of the most fun mountains in the entirety of Snowdonia National Park. Get our West Side Summits Trail Route

The Best Tryfan Route

As it says on the tin, after literally hundreds of times summiting Tryfan we believe we've pretty much nailed the best way up and down this legendary mountain. View all our Tryfan trail routes.

Glyderau Photo Gallery

Pics from hundreds of visits to the Ogwen Valley and the Glyderau mountains.

How To Find The Glyderau

It’s most common to access the Glyderau from either Ogwen Valley or Capel Curig. It’s also possible to access Glyder Fawr from the Snowdon side, and Elidir Fawr from the town of Llanberis.

Ogwen Valley postcode: LL57 3LZ (Ogwen Cottage)

Capel Curig postcode: LL24 0EN (car park behind Joe Browns outdoor shop)

Glyderau Videos

Video memories from our days out wandering around the Glyderau mountains.